Changes: Portal:Tremolo bridges

Latest revision as of 19:45, 28 April 2020

Portal:Parts
Portal: Tremolo bridges

Tremolo bridges installed in Ibanez Guitars

Timelines of Ibanez tremolo bridges

Double locking tremolos

Ibanez has earned a reputation for offering some of the highest quality double locking tremolos of any guitar manufacturer. Many people consider Ibanez's Edge tremolos among the best Floyd Rose style bridges produced.

The lineage of Ibanez double-locking tremolos can be a bit overwhelming with so many variations, most of which have "Edge" in their names. Here's a simplistic breakdown of the major Ibanez double locking tremolos:

High-end trems (used primarily on guitars produced in Japan):

Edge (a.k.a. Original Edge or OE)
Lo-Pro Edge (LPE)
Edge Pro (EP)
Edge Zero (EZ)
ZR/ ZR2 (stands for Zero Resistance, but are referred to most often by the initials)

Mid-grade trems (installed in guitars sourced from Korea and Indonesia):

Low-end trems (used in less expensive guitars produced outside Japan):

This list is not exhaustive, but that covers the most popular double locking tremolos found in Ibanez guitars.

History

The first double locking tremolo employed by Ibanez was the Pro Rock'r, which debuted in 1984.

The Edge, which was Ibanez's first Floyd Rose licensed tremolo design, was introduced in 1986. Initially it was surface mounted, but with the introduction of the JEM777 and RG550 in 1987 a cavity was routed below the tremolo to allow the player to manipulate the tremolo either by pushing down (to lower the pitch) or pulling up (to raise the pitch). The Lo-Pro Edge is a low-profile version of the Edge (as its name suggests) which came along around 1991.

The Edge Pro was introduced for 2003 as a replacement to the OE & LPE; it has a low-profile design similar to the LPE. The Edge Pro was created at least partially to avoid licensing Floyd Rose patents, but that goal was not really achieved. The OE/LPE returned around 2010 and the EP was retired. The only obvious weakness of the EP is that it didn't come with the locking posts of the OE/LPE, although those can be added as an aftermarket upgrade.

The Zero Resistance (or ZR) tremolo was also introduced for 2003. The ZR differs from the other double locking trems in that it pivots on ball bearings rather than a knife edge. Its other major innovation is a "Zero Point System" which is a secondary set of springs meant to maintain tuning stability by helping the tremolo return accurately to the rest position.

The Edge Zero came out in 2008. It borrowed the ZPS design from the ZR, while using the traditional knife-edge pivots.

Double locking tremolo timeline (1984–2020)

Single locking tremolos

Single locking tremolos are those in which the string is locked down only on one end.

In a double locking tremolo the string is locked down both at the nut and at the saddle whereas in a single locking design only one or the other is locked. In some cases, such as with the Hard Rocker Pro and Edge II the string is held securely at the saddle, but the nut is not locked. In others, such as the Pro Rock'r, Powerocker DX and SLT101 a locking nut is used, but the string is not locked down at the bridge.

In cases where a locking nut is used, fine tuners at the bridge end allow the player to make tuning adjustments without unlocking the nut.

Single locking tremolo timeline (1983–2020)

Synchronized tremolos

List of all tremolo bridges

@@ Line 2: / Line 2: @@
  | category = Parts
  | family   = Parts
+ | content  = Tremolo bridges installed in Ibanez Guitars
+ | name     = Tremolo bridges
 }}
 {{Portal/End}}
 == Timelines of Ibanez tremolo bridges ==
-<!--
-<timeline>
-ImageSize = width:900 height:auto barincrement:25
-PlotArea = left:110 bottom:120 top:0 right:15
-Alignbars = justify
-DateFormat  = mm/dd/yyyy
-Period = from:01/01/1985 till:12/31/2018
-TimeAxis = orientation:horizontal format:yyyy
-Legend = orientation:vertical position:bottom columns:3
-ScaleMajor = increment:5 start:01/01/1985
-ScaleMinor = increment:1 start:01/01/1985
-Colors =
- id:dl            value:red             legend:Double&nbsp;locking&nbsp;(knife&nbsp;edge)
- id:sl            value:orange          legend:Single&nbsp;locking&nbsp;(knife&nbsp;edge)
- id:bb            value:magenta         legend:Double&nbsp;locking&nbsp;(ball&nbsp;bearing&nbsp;pivot)
- id:sync_6screw   value:blue            legend:Synchronized&nbsp;(6&nbsp;screw)
- id:sync_2screw   value:powderblue      legend:Synchronized&nbsp;(2&nbsp;screw)
- id:sync_2point   value:teal            legend:Synchronized&nbsp;(2&nbsp;point)
- id:sync_bb       value:purple          legend:Synchronized&nbsp;(ball&nbsp;bearing&nbsp;pivot)
- id:piezo         value:gray(0.80)      legend:with&nbsp;piezo&nbsp;saddles
- id:bars          value:gray(0.95)
- id:vertical      value:gray(0.80)
-Legend = orientation:vertical position:bottom columns:3
-BackgroundColors = bars:bars
-ScaleMajor = increment:5 start:01/01/1985
-ScaleMinor = unit:year increment:1 start:01/01/1985
-LineData =
- at:01/01/1990                  color:vertical     width:0.1          # perpendicular to time axis full length
- at:01/01/1995                  color:vertical     width:0.1          # perpendicular to time axis full length
- at:01/01/2000                  color:vertical     width:0.1          # perpendicular to time axis full length
- at:01/01/2005                  color:vertical     width:0.1          # perpendicular to time axis full length
- at:01/01/2010                  color:vertical     width:0.1          # perpendicular to time axis full length
- at:01/01/2015                  color:vertical     width:0.1          # perpendicular to time axis full length
-BarData =
- bar:Edge         text:"Edge"
- bar:EdgeII       text:"Edge II"
- bar:HQ           text:"HQ"
- bar:TRS101       text:"TRS-101"
- bar:StdSync      text:"Standard trem"
- bar:Edge7        text:"Edge 7"
- bar:HQ-J         text:"HQ-J"
- bar:LPE          text:"Lo-Pro Edge"
- bar:LPE7         text:"Lo-Pro Edge 7"
- bar:TZ-II        text:"TZ-II"
- bar:TZ-6         text:"TZ-6"
- bar:SLT101       text:"SLT-101"
- bar:LoTRS        text:"Lo-TRS"
- bar:TZ100        text:"TZ100"
- bar:TZ30         text:"TZ-30"
- bar:LoTRs2       text:"Lo-TRS II"
- bar:TT50         text:"TT50"
- bar:Gotoh510AT   text:"Gotoh 510AT"
- bar:WG_VSVG      text:"Wilk./Gotoh VSVG"
- bar:W-VS100G     text:"Wilkinson VS100G"
- bar:DoubleLPE    text:"Double Lo-Pro Edge"
- bar:VFT2         text:"VFT2"
- bar:DoubleEdge   text:"Double Edge"
- bar:LoTRS7       text:"Lo-TRS 7"
- bar:Std7Sync     text:"Std. trem (7-string)"
- bar:SAT-30       text:"SAT-30"
- bar:ILT1         text:"ILT1"
- bar:FAT-6        text:"FAT-6"
- bar:TZ30-7       text:"TZ-30 (7-string)"
- bar:FAT-10       text:"FAT-10"
- bar:SAT-30S      text:"SAT-30S"
- bar:FAT-20       text:"FAT-20"
- bar:SAT-10       text:"SAT-10"
- bar:SAT-30SX     text:"SAT-30SX"
- bar:DoubleEP     text:"Double Edge Pro"
- bar:EdgePro      text:"Edge Pro"
- bar:EdgePro7     text:"Edge Pro 7"
- bar:EdgeProII    text:"Edge Pro II"
- bar:ZR           text:"Zero Resistance (ZR)"
- bar:SATPro       text:"SAT Pro"
- bar:EdgeIII      text:"Edge III"
- bar:SynchroniZR  text:"SynchroniZR"
- bar:ZR2          text:"ZR2"
- bar:SATProII     text:"SAT Pro II"
- bar:EdgeZero     text:"Edge Zero"
- bar:EdgeZero7    text:"Edge Zero 7"
- bar:EdgeZeroII   text:"Edge Zero II"
- bar:EdgeZeroII7  text:"Edge Zero II 7"
- bar:StdDL        text:"Std. double-locking"
- bar:WV6-SB       text:"Wilkinson WV6-SB"
- bar:ITL-PRO      text:"ITL-PRO"
- bar:ITL-10       text:"ITL-10"
- bar:T102         text:"T102"
- bar:T106         text:"T106"
- bar:T1502        text:"T1502"
- bar:T1802        text:"T1802"
-PlotData=
- width:13 textcolor:black align:left anchor:from shift:(10,-4)
- bar:Edge        from:01/01/1986 till:12/31/2002        color:dl          width:15
- bar:Edge        from:01/01/2010 till:12/31/2018        color:dl          width:15
- bar:EdgeII      from:01/01/1988 till:12/31/1989        color:sl          width:15
- bar:HQ          from:01/01/1988 till:12/31/1990        color:sync_2point width:15
- bar:TRS101      from:01/01/1988 till:12/31/2002        color:dl          width:15
- bar:StdSync     from:01/01/1989 till:12/31/2004        color:sync_6screw width:15
- bar:StdSync     from:01/01/2013 till:12/31/2018        color:sync_6screw width:15
- bar:Edge7       from:01/01/1990 till:12/31/1990        color:dl          width:15
- bar:HQ-J        from:01/01/1990 till:12/31/1991        color:sync_2point width:15
- bar:LPE         from:01/01/1991 till:12/31/2002        color:dl          width:15
- bar:LPE         from:01/01/2010 till:12/31/2018        color:dl          width:15
- bar:LPE7        from:01/01/1991 till:12/31/2002        color:dl          width:15
- bar:LPE7        from:01/01/2010 till:12/31/2018        color:dl          width:15
- bar:TZ-II       from:01/01/1992 till:12/31/1993        color:sync_2point width:15
- bar:TZ-6        from:01/01/1992 till:12/31/1997        color:sync_2point width:15
- bar:SLT101      from:01/01/1992 till:12/31/2001        color:sl          width:15
- bar:LoTRS       from:01/01/1992 till:12/31/2002        color:dl          width:15
- bar:TZ100       from:01/01/1993 till:12/31/1995        color:sync_2point width:15
- bar:TZ30        from:01/01/1994 till:12/31/2000        color:sync_2point width:15
- bar:LoTRS2      from:01/01/1994 till:12/31/2004        color:dl          width:15
- bar:TT50        from:01/01/1995 till:12/31/1998        color:sync_2point width:15
- bar:Gotoh510AT  from:01/01/1997 till:12/31/1998        color:sync_2screw width:15
- bar:WG_VSVG     from:01/01/1997 till:12/31/1999        color:sync_6screw width:15
- bar:WG_VSVG     from:01/01/2004 till:12/31/2007        color:sync_6screw width:15
- bar:WG_VSVG     from:01/01/2009 till:12/31/2018        color:sync_6screw width:15
- bar:W-VS100G    from:01/01/1998 till:12/31/1999        color:sync_2point width:15
- bar:DoubleLPE   from:01/01/1999 till:12/31/1999        color:dl          width:15
- bar:DoubleLPE   from:01/01/1999 till:12/31/1999        color:piezo       width:3
- bar:DoubleLPE   from:01/01/2002 till:12/31/2002        color:dl          width:15
- bar:DoubleLPE   from:01/01/2002 till:12/31/2002        color:piezo       width:3
- bar:VFT2        from:01/01/2000 till:12/31/2000        color:sync_2point width:15
- bar:DoubleEdge  from:01/01/2000 till:12/31/2002        color:dl          width:15
- bar:DoubleEdge  from:01/01/2000 till:12/31/2002        color:piezo       width:3
- bar:LoTRS7      from:01/01/2000 till:12/31/2002        color:dl          width:15
- bar:Std7Sync    from:01/01/2000 till:12/31/2004        color:sync_6screw width:15
- bar:SAT-30      from:01/01/2001 till:12/31/2005        color:sync_2point width:15
- bar:ILT1        from:01/01/2001 till:12/31/2010        color:dl          width:15
- bar:FAT-6       from:01/01/2001 till:12/31/2018        color:sync_6screw width:15
- bar:TZ30-7      from:01/01/2002 till:12/31/2003        color:sync_2point width:15
- bar:FAT-10      from:01/01/2002 till:12/31/2018        color:sync_2point width:15
- bar:FAT-20      from:01/01/2002 till:12/31/2012        color:sync_2point width:15
- bar:SAT-30S     from:01/01/2002 till:12/31/2005        color:sync_2point width:15
- bar:SAT-10      from:01/01/2002 till:12/31/2018        color:sync_2point width:15
- bar:SAT-30SX    from:01/01/2002 till:12/31/2005        color:sync_2point width:15
- bar:SAT-30SX    from:01/01/2002 till:12/31/2005        color:piezo       width:3
- bar:DoubleEP    from:01/01/2003 till:12/31/2009        color:dl          width:15
- bar:DoubleEP    from:01/01/2003 till:12/31/2009        color:piezo       width:3
- bar:EdgePro     from:01/01/2003 till:12/31/2010        color:dl          width:15
- bar:EdgePro7    from:01/01/2003 till:12/31/2010        color:dl          width:15
- bar:EdgeProII   from:01/01/2003 till:12/31/2005        color:dl          width:15
- bar:ZR          from:01/01/2003 till:12/31/2015        color:bb          width:15
- bar:SATPro      from:01/01/2004 till:12/31/2008        color:sync_2point width:15
- bar:EdgeIII     from:01/01/2005 till:12/31/2017        color:dl          width:15
- bar:SynchroniZR from:01/01/2008 till:12/31/2018        color:sync_bb     width:15
- bar:ZR2         from:01/01/2008 till:12/31/2015        color:bb          width:15
- bar:SATProII    from:01/01/2008 till:12/31/2017        color:sync_2point width:15
- bar:EdgeZero    from:01/01/2008 till:12/31/2018        color:dl          width:15
- bar:EdgeZero7   from:01/01/2010 till:12/31/2018        color:dl          width:15
- bar:EdgeZeroII  from:01/01/2011 till:12/31/2018        color:dl          width:15
- bar:EdgeZeroII7 from:01/01/2011 till:12/31/2018        color:dl          width:15
- bar:StdDL       from:01/01/2013 till:12/31/2018        color:dl          width:15
- bar:WV6-SB      from:01/01/2013 till:12/31/2018        color:sync_6screw width:15
- bar:ITL-PRO     from:09/01/2015 till:12/31/2018        color:sync_6screw width:15
- bar:ITL-10      from:01/01/2016 till:12/31/2018        color:sync_6screw width:15
- bar:T102        from:01/01/2018 till:12/31/2018        color:sync_2point width:15
- bar:T106        from:01/01/2018 till:12/31/2018        color:sync_6screw width:15
- bar:T1502       from:01/01/2018 till:12/31/2018        color:sync_2point width:15
- bar:T1802       from:01/01/2018 till:12/31/2018        color:sync_2point width:15
-</timeline>-->
 === Double locking tremolos ===
+[[File:Edge diagram.jpg|right|400px]]
-Ibanez has a rich history of offering some of the finest quality [[Double locking tremolo]]s offered by any guitar manufacturer. Many people consider Ibanez's Edge tremolos the best [[Wikipedia:Floyd Rose|Floyd Rose style]] bridges produced.
+Ibanez has earned a reputation for offering some of the highest quality [[double locking tremolo]]s of any guitar manufacturer. Many people consider Ibanez's Edge tremolos among the best [[Wikipedia:Floyd Rose|Floyd Rose style]] bridges produced.
-The lineage of Ibanez double-locking tremolos can be a bit overwhelming. You'll get differing opinions about which trem is "best" but let's start with some generalities. First rule of thumb is that the best trems are the ones without a number in their names (e.g. an Edge Zero II is NOT better than and Edge Zero).
+The lineage of Ibanez double-locking tremolos can be a bit overwhelming with so many variations, most of which have "Edge" in their names. Here's a simplistic breakdown of the major Ibanez double locking tremolos:
+High-end trems (used primarily on guitars produced in Japan):
-Here's a simplistic breakdown of the major Ibanez double locking tremolos:
-High-end trems (all of these are rock solid):
 * [[Edge]] (a.k.a. Original Edge or OE)
 * [[Lo-Pro Edge]] (LPE)
@@ Line 188: / Line 20: @@
 * [[ZR]]/ [[ZR2]] (stands for Zero Resistance, but are referred to most often by the initials)
-Mid-grade trems (these are all quite capable, but a notch below the best):
+Mid-grade trems (installed in guitars sourced from Korea and Indonesia):
+* [[Lo-TRS]]
+* [[Edge Pro II]] (EP2)
 * [[Edge Zero II]] (EZ2)
-* [[Edge Pro II]] (EP2)
-* [[Lo-TRS]]
+Low-end trems (used in less expensive guitars produced outside Japan):
-Low-end trems (these are generally fine at least when new, but suffer from cheap materials which compromise their longevity):
+* [[Lo-TRS 2]]
 * [[Edge III]] (E3)
 * [[Standard DL tremolo]]
-* [[Lo-TRS 2]]
-This list is not exhaustive, but that covers the majority of what you'll find.
+This list is not exhaustive, but that covers the most popular double locking tremolos found in Ibanez guitars.
+==== History ====
+The first [[double locking tremolo]] employed by Ibanez was the [[Pro Rock'r]], which debuted in 1984.
+The [[Edge]], which was Ibanez's first Floyd Rose licensed tremolo design, was introduced in 1986. Initially it was surface mounted, but with the introduction of the [[JEM777]] and [[RG550 (1987–1994)|RG550]] in 1987 a cavity was routed below the tremolo to allow the player to manipulate the tremolo either by pushing down (to lower the pitch) or pulling up (to raise the pitch). The Lo-Pro Edge is a low-profile version of the Edge (as its name suggests) which came along around 1991.
+The Edge Pro was introduced for 2003 as a replacement to the OE & LPE; it has a low-profile design similar to the LPE. The Edge Pro was created at least partially to avoid licensing Floyd Rose patents, but that goal was not really achieved. The OE/LPE returned around 2010 and the EP was retired. The only obvious weakness of the EP is that it didn't come with the locking posts of the OE/LPE, although those can be added as an aftermarket upgrade.
+The Zero Resistance (or ZR) tremolo was also introduced for 2003. The ZR differs from the other double locking trems in that it pivots on ball bearings rather than a knife edge. Its other major innovation is a "[[ZPS3|Zero Point System]]" which is a secondary set of springs meant to maintain tuning stability by helping the tremolo return accurately to the rest position.
-Among the high-end trems, each one has its differences and its adherents who will tell you it's the best. The truth is that ALL of them are very good and among the best Floyd Rose style trems you'll find anywhere.
+The Edge Zero came out in 2008. It borrowed the ZPS design from the ZR, while using the traditional knife-edge pivots.
-The Edge was Ibanez first modern FR trem introduced in 1986. The LPE is a low-profile version of the Edge, as its name suggests, which came along around 1991. The Edge Pro was introduced for 2003 as a replacement to the OE & LPE; it has a low-profile design similar to the LPE. The EP was created at least partially to avoid licensing Floyd Rose patents, but that goal was not really achieved. The OE/LPE returned around 2010 and the EP was soon retired. The only real weakness of the EP is that it didn't come with the locking posts of the OE/LPE, although those can be added as an aftermarket upgrade.
+; Double locking tremolo timeline (1984–2020)
-The Edge Zero came out in 2008. Its major innovation is a "[[ZPS3|Zero Point System]]" which is meant to help maintain tuning stability. The ZR also uses the ZPS technology, but differs from the other double locking trems in that it pivots on ball bearings rather than a knife edge.
 <timeline>
-ImageSize = width:900 height:auto barincrement:25
+ImageSize = width:800 height:auto barincrement:25
 PlotArea = left:110 bottom:120 top:0 right:15
 Alignbars = justify
 DateFormat  = mm/dd/yyyy
-Period = from:01/01/1985 till:12/31/2018
+Period = from:01/01/1984 till:01/01/2021
 TimeAxis = orientation:horizontal format:yyyy
 Legend = orientation:vertical position:bottom columns:3
 ScaleMajor = increment:5 start:01/01/1985
-ScaleMinor = increment:1 start:01/01/1985
+ScaleMinor = increment:1 start:01/01/1984
 Colors =
  id:dl            value:red          legend:Knife&nbsp;edge&nbsp;pivot
- id:bb            value:magenta      legend:Bball&nbsp;bearing&nbsp;pivot
+ id:bb            value:magenta      legend:Ball&nbsp;bearing&nbsp;pivot
  id:piezo         value:gray(0.80)   legend:with&nbsp;piezo&nbsp;saddles
  id:bars          value:gray(0.95)
@@ Line 227: / Line 67: @@
 BackgroundColors = bars:bars
 ScaleMajor = increment:5 start:01/01/1985
-ScaleMinor = unit:year increment:1 start:01/01/1985
+ScaleMinor = unit:year increment:1 start:01/01/1984
 LineData =
+ at:01/01/1985                  color:vertical     width:0.1          # perpendicular to time axis full length
  at:01/01/1990                  color:vertical     width:0.1          # perpendicular to time axis full length
  at:01/01/1995                  color:vertical     width:0.1          # perpendicular to time axis full length
@@ Line 236: / Line 77: @@
  at:01/01/2010                  color:vertical     width:0.1          # perpendicular to time axis full length
  at:01/01/2015                  color:vertical     width:0.1          # perpendicular to time axis full length
+ at:01/01/2020                  color:vertical     width:0.1          # perpendicular to time axis full length
 BarData =
+ bar:ProRockr     text:"Pro Rock'r"
  bar:Edge         text:"Edge"
+ bar:TRT1         text:"TRT-1"
  bar:TRS101       text:"TRS-101"
  bar:Edge7        text:"Edge 7"
  bar:LPE          text:"Lo-Pro Edge"
  bar:LPE7         text:"Lo-Pro Edge 7"
+ bar:LPE7_Ubar    text:"Lo-Pro Edge 7 (U-bar)"
  bar:LoTRS        text:"Lo-TRS"
  bar:LoTRS2       text:"Lo-TRS II"
  bar:DoubleLPE    text:"Double Lo-Pro Edge"
+ bar:DoubleLPE7   text:"Double Lo-Pro Edge 7"
  bar:DoubleEdge   text:"Double Edge"
  bar:LoTRS7       text:"Lo-TRS 7"
@@ Line 252: / Line 98: @@
  bar:EdgePro      text:"Edge Pro"
  bar:EdgePro7     text:"Edge Pro 7"
+ bar:EdgePro7_U   text:"Edge Pro 7 (U-bar)"
  bar:EdgeProII    text:"Edge Pro II"
  bar:ZR           text:"Zero Resistance (ZR)"
@@ Line 264: / Line 111: @@
 PlotData=
  width:13 textcolor:black align:left anchor:from shift:(10,-4)
+ bar:ProRockr    from:01/01/1984 till:12/31/1985        color:dl          width:15
  bar:Edge        from:01/01/1986 till:12/31/2002        color:dl          width:15
- bar:Edge        from:01/01/2010 till:12/31/2018        color:dl          width:15
+ bar:Edge        from:01/01/2007 till:12/31/2007        color:dl          width:15
+ bar:Edge        from:01/01/2010 till:12/31/2020        color:dl          width:15
+ bar:TRT1        from:01/01/1988 till:12/31/1988        color:dl          width:15
  bar:TRS101      from:01/01/1988 till:12/31/2002        color:dl          width:15
  bar:Edge7       from:01/01/1990 till:12/31/1990        color:dl          width:15
  bar:LPE         from:01/01/1991 till:12/31/2002        color:dl          width:15
- bar:LPE         from:01/01/2010 till:12/31/2018        color:dl          width:15
+ bar:LPE         from:01/01/2010 till:12/31/2020        color:dl          width:15
  bar:LPE7        from:01/01/1991 till:12/31/2002        color:dl          width:15
- bar:LPE7        from:01/01/2010 till:12/31/2018        color:dl          width:15
+ bar:LPE7        from:01/01/2010 till:12/31/2020        color:dl          width:15
+ bar:LPE7_Ubar   from:01/01/2001 till:12/31/2006        color:dl          width:15
+ bar:LPE7_Ubar   from:01/01/2010 till:12/31/2020        color:dl          width:15
  bar:LoTRS       from:01/01/1992 till:12/31/2002        color:dl          width:15
  bar:LoTRS2      from:01/01/1994 till:12/31/2004        color:dl          width:15
- bar:DoubleLPE   from:01/01/1999 till:12/31/1999        color:dl          width:15
+ bar:DoubleLPE   from:01/01/1999 till:12/31/2002        color:dl          width:15
- bar:DoubleLPE   from:01/01/1999 till:12/31/1999        color:piezo       width:3
+ bar:DoubleLPE   from:01/01/1999 till:12/31/2002        color:piezo       width:3
- bar:DoubleLPE   from:01/01/2002 till:12/31/2002        color:dl          width:15
+ bar:DoubleLPE7  from:01/01/1999 till:12/31/2002        color:dl          width:15
- bar:DoubleLPE   from:01/01/2002 till:12/31/2002        color:piezo       width:3
+ bar:DoubleLPE7  from:01/01/1999 till:12/31/2002        color:piezo       width:3
  bar:DoubleEdge  from:01/01/2000 till:12/31/2002        color:dl          width:15
  bar:DoubleEdge  from:01/01/2000 till:12/31/2002        color:piezo       width:3
@@ Line 286: / Line 138: @@
  bar:EdgePro     from:01/01/2003 till:12/31/2010        color:dl          width:15
  bar:EdgePro7    from:01/01/2003 till:12/31/2010        color:dl          width:15
- bar:EdgeProII   from:01/01/2003 till:12/31/2005        color:dl          width:15
+ bar:EdgePro7_U  from:01/01/2007 till:12/31/2009        color:dl          width:15
+ bar:EdgeProII   from:01/01/2003 till:12/31/2006        color:dl          width:15
  bar:ZR          from:01/01/2003 till:12/31/2015        color:bb          width:15
  bar:EdgeIII     from:01/01/2005 till:12/31/2017        color:dl          width:15
  bar:ZR2         from:01/01/2008 till:12/31/2015        color:bb          width:15
- bar:EdgeZero    from:01/01/2008 till:12/31/2018        color:dl          width:15
+ bar:EdgeZero    from:01/01/2008 till:12/31/2020        color:dl          width:15
- bar:EdgeZero7   from:01/01/2010 till:12/31/2018        color:dl          width:15
+ bar:EdgeZero7   from:01/01/2010 till:12/31/2020        color:dl          width:15
- bar:EdgeZeroII  from:01/01/2011 till:12/31/2018        color:dl          width:15
+ bar:EdgeZeroII  from:01/01/2011 till:12/31/2020        color:dl          width:15
- bar:EdgeZeroII7 from:01/01/2011 till:12/31/2018        color:dl          width:15
+ bar:EdgeZeroII7 from:01/01/2011 till:12/31/2020        color:dl          width:15
- bar:StdDL       from:01/01/2013 till:12/31/2018        color:dl          width:15
+ bar:StdDL       from:01/01/2013 till:12/30/2020        color:dl          width:15
 </timeline>
 === Single locking tremolos ===
+Single locking tremolos are those in which the string is locked down only on one end.
+In a double locking tremolo the string is locked down both at the nut and at the saddle whereas in a single locking design only one or the other is locked. In some cases, such as with the [[Hard Rocker Pro]] and [[Edge II]] the string is held securely at the saddle, but the nut is not locked. In others, such as the [[Pro Rock'r]], [[Powerocker DX]] and [[SLT101]] a locking nut is used, but the string is not locked down at the bridge.
+In cases where a locking nut is used, fine tuners at the bridge end allow the player to make tuning adjustments without unlocking the nut.
+; Single locking tremolo timeline (1983–2020)
 <timeline>
-ImageSize = width:900 height:auto barincrement:35
+ImageSize = width:800 height:auto barincrement:35
 PlotArea = left:110 bottom:120 top:0 right:15
 Alignbars = justify
 DateFormat  = mm/dd/yyyy
-Period = from:01/01/1985 till:12/31/2018
+Period = from:01/01/1983 till:01/01/2021
 TimeAxis = orientation:horizontal format:yyyy
 Legend = orientation:vertical position:bottom columns:3
 ScaleMajor = increment:5 start:01/01/1985
-ScaleMinor = increment:1 start:01/01/1985
+ScaleMinor = increment:1 start:01/01/1983
 Colors =
- id:sl            value:orange       legend:Single&nbsp;locking&nbsp;(knife&nbsp;edge)
+ id:lsr           value:orange       legend:Locking&nbsp;saddle&nbsp;(rounded&nbsp;pivot)
+ id:lsk           value:redorange    legend:Locking&nbsp;saddle&nbsp;(knife&nbsp;pivot)
+ id:lnr           value:yelloworange legend:Locking&nbsp;nut&nbsp;(rounded&nbsp;pivot)
+ id:lnk           value:coral        legend:Locking&nbsp;nut&nbsp;(knife&nbsp;pivot)
  id:bars          value:gray(0.95)
  id:vertical      value:gray(0.80)
@@ Line 317: / Line 180: @@
 BackgroundColors = bars:bars
 ScaleMajor = increment:5 start:01/01/1985
-ScaleMinor = unit:year increment:1 start:01/01/1985
+ScaleMinor = unit:year increment:1 start:01/01/1983
 LineData =
+ at:01/01/1985                  color:vertical     width:0.1          # perpendicular to time axis full length
  at:01/01/1990                  color:vertical     width:0.1          # perpendicular to time axis full length
  at:01/01/1995                  color:vertical     width:0.1          # perpendicular to time axis full length
@@ Line 326: / Line 190: @@
  at:01/01/2010                  color:vertical     width:0.1          # perpendicular to time axis full length
  at:01/01/2015                  color:vertical     width:0.1          # perpendicular to time axis full length
+ at:01/01/2020                  color:vertical     width:0.1          # perpendicular to time axis full length
 BarData =
+ bar:HRPro        text:"Hard Rocker Pro"
+ bar:OGE1086TFB   text:"OGE1086TFB"
+ bar:PwrckrDX     text:"Powerocker DX"
+ bar:PwrckrII     text:"Powerocker II"
  bar:EdgeII       text:"Edge II"
  bar:SLT101       text:"SLT-101"
+ bar:TRS505       text:"TRS505"
 PlotData=
  width:13 textcolor:black align:left anchor:from shift:(10,-4)
- bar:EdgeII      from:01/01/1988 till:12/31/1989        color:sl          width:15
+ bar:HRPro       from:01/01/1983 till:12/31/1985        color:lsr         width:15
- bar:SLT101      from:01/01/1992 till:12/31/2001        color:sl          width:15
+ bar:OGE1086TFB  from:01/01/1985 till:12/31/1985        color:lnk          width:15
+ bar:PwrckrDX    from:01/01/1987 till:12/31/1987        color:lnr         width:15
+ bar:PwrckrII    from:01/01/1988 till:12/31/1988        color:lnr         width:15
+ bar:EdgeII      from:01/01/1988 till:12/31/1989        color:lsk         width:15
+ bar:SLT101      from:01/01/1992 till:12/31/2001        color:lnk         width:15
+ bar:TRS505      from:01/01/1995 till:12/31/1996        color:lnk         width:15
+ bar:TRS505      from:01/01/1998 till:12/31/1998        color:lnk         width:15
+ bar:TRS505      from:01/01/2000 till:12/31/2002        color:lnk         width:15
 </timeline>
 === Synchronized tremolos ===
 <timeline>
-ImageSize = width:900 height:auto barincrement:25
+ImageSize = width:800 height:auto barincrement:25
 PlotArea = left:110 bottom:120 top:0 right:15
 Alignbars = justify
 DateFormat  = mm/dd/yyyy
-Period = from:01/01/1985 till:12/31/2018
+Period = from:01/01/1983 till:01/01/2021
 TimeAxis = orientation:horizontal format:yyyy
 Legend = orientation:vertical position:bottom columns:3
 ScaleMajor = increment:5 start:01/01/1985
-ScaleMinor = increment:1 start:01/01/1985
+ScaleMinor = increment:1 start:01/01/1983
 Colors =
@@ Line 354: / Line 231: @@
  id:sync_2screw   value:powderblue      legend:2&nbsp;screw&nbsp;pivot
  id:sync_2point   value:teal            legend:2&nbsp;point&nbsp;knife&nbsp;edge&nbsp;pivot
+ id:2pt_rounded   value:green           legend:2&nbsp;point&nbsp;rounded&nbsp;pivot
  id:sync_bb       value:purple          legend:Ball&nbsp;bearing&nbsp;pivot
  id:piezo         value:gray(0.80)      legend:with&nbsp;piezo&nbsp;saddles
@@ Line 362: / Line 240: @@
 BackgroundColors = bars:bars
 ScaleMajor = increment:5 start:01/01/1985
-ScaleMinor = unit:year increment:1 start:01/01/1985
+ScaleMinor = unit:year increment:1 start:01/01/1983
 LineData =
+ at:01/01/1985                  color:vertical     width:0.1          # perpendicular to time axis full length
  at:01/01/1990                  color:vertical     width:0.1          # perpendicular to time axis full length
  at:01/01/1995                  color:vertical     width:0.1          # perpendicular to time axis full length
@@ Line 371: / Line 250: @@
  at:01/01/2010                  color:vertical     width:0.1          # perpendicular to time axis full length
  at:01/01/2015                  color:vertical     width:0.1          # perpendicular to time axis full length
+ at:01/01/2020                  color:vertical     width:0.1          # perpendicular to time axis full length
 BarData =
+ bar:HardRocker   text:"Hard Rocker"
+ bar:Powerocker   text:"Powerocker"
+ bar:PwrRckrSpec  text:"Powerocker Special"
  bar:HQ           text:"HQ"
  bar:StdSync      text:"Standard trem"
@@ Line 408: / Line 291: @@
 PlotData=
  width:13 textcolor:black align:left anchor:from shift:(10,-4)
+ bar:HardRocker  from:01/01/1983 till:12/31/1984        color:2pt_rounded width:15
+ bar:Powerocker  from:01/01/1984 till:12/31/1987        color:2pt_rounded width:15
+ bar:PwrRckrSpec from:01/01/1985 till:12/31/1987        color:2pt_rounded width:15
  bar:HQ          from:01/01/1988 till:12/31/1990        color:sync_2point width:15
  bar:StdSync     from:01/01/1989 till:12/31/2004        color:sync_6screw width:15
@@ Line 420: / Line 306: @@
  bar:WG_VSVG     from:01/01/1997 till:12/31/1999        color:sync_6screw width:15
  bar:WG_VSVG     from:01/01/2004 till:12/31/2007        color:sync_6screw width:15
- bar:WG_VSVG     from:01/01/2009 till:12/31/2018        color:sync_6screw width:15
+ bar:WG_VSVG     from:01/01/2009 till:12/31/2020        color:sync_6screw width:15
  bar:W-VS100G    from:01/01/1998 till:12/31/1999        color:sync_2point width:15
  bar:VFT2        from:01/01/2000 till:12/31/2000        color:sync_2point width:15
@@ Line 436: / Line 322: @@
  bar:SynchroniZR from:01/01/2008 till:12/31/2018        color:sync_bb     width:15
  bar:SATProII    from:01/01/2008 till:12/31/2017        color:sync_2point width:15
- bar:WV6-SB      from:01/01/2013 till:12/31/2018        color:sync_6screw width:15
+ bar:WV6-SB      from:01/01/2013 till:12/31/2020        color:sync_6screw width:15
  bar:ITL-PRO     from:09/01/2015 till:12/31/2018        color:sync_6screw width:15
  bar:ITL-10      from:01/01/2016 till:12/31/2018        color:sync_6screw width:15
- bar:T102        from:01/01/2018 till:12/31/2018        color:sync_2point width:15
+ bar:T102        from:01/01/2018 till:12/31/2020        color:sync_2point width:15
- bar:T106        from:01/01/2018 till:12/31/2018        color:sync_6screw width:15
+ bar:T106        from:01/01/2018 till:12/31/2020        color:sync_6screw width:15
- bar:T1502       from:01/01/2018 till:12/31/2018        color:sync_2point width:15
+ bar:T1502       from:01/01/2018 till:12/31/2020        color:sync_2point width:15
- bar:T1802       from:01/01/2018 till:12/31/2018        color:sync_2point width:15
+ bar:T1802       from:01/01/2018 till:12/31/2020        color:sync_2point width:15
 </timeline>
 == List of all tremolo bridges ==
+<div style="column-count:4;-moz-column-count:4;-webkit-column-count:4">
-{{#categorytree:Tremolo bridges|hideroot|hideprefix=always|mode=pages}}
-'''[[:Category:Tremolo bridges|more]]'''
+{{#categorytree:Tremolo bridges|hideroot|mode=pages}}
+{{#ifexpr:{{PAGESINCATEGORY:Tremolo bridges|pages}}>200|'''[[:Category:Tremolo bridges|more]]'''}}
+</div>
+[[Category:Parts portals]]