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GPR Stabilizer Racing Products

GPR Stabilizer is a family owned and operated business with a pure passion for every discipline of motorcycle racing.
The GPR Stabilizer was born of frustration. Fed up with the lack of quality and selection at the time, Ralph and Randy Norman set out to make the best steering damper available for off-road racers. They started with an original design created from previous testing and prototyping. Helped by their background in aerospace manufacturing and design, it evolved into the dominant steering damper at any off road venue today. Now, with patents held in the USA and abroad, GPR has set its sights on the world racing market.

The success from GPR's professional road-, off-road-, and ATV-racers around the world has allowed them to develop what racers are asking for: a motorcycle steering damper that is lightweight, small, adjustable on the fly, and easy to service. With applications for just about every popular make and model of performance motorcycle, GPR steering dampers are top-of-the-line. The GPRV4 was designed and developed specifically for sport bikes and road racing bikes and is now used by some of the biggest names in racing.

On any given weekend, one GPR rig will be at an AMA Road Race, another at a WORCS off-road championship, and another in the World Superbike paddock. GPR Stabilizer is currently the only American sponsor of the World Superbike Championship and the only rotary steering damper on the World Supersport grid. Thanks to successful partnerships with their distributors, racers, and teams, GPR Stabilizer has racked up championships across the globe and is represented and distributed in over 24 countries.
gpr red black v4 sport stabilizer damper racing track day ducati honda yamaha suzuki kawasaki
Why GPR?
Every part of GPR Stabilizer is produced under one roof in the USA. Design, manufacturing, assembly, testing, and distribution are all done at their San Diego, CA facility. GPR is the only steering damper company to provide it all for you: lifetime service warranties, color selections, range of applications, service in the paddocks, and most importantly, constant improvement.

How many different dampening settings does the GPR have?
The numbers are strictly for reference, so you can visually/physically know what adjustment you are at. No guessing or fumbling required. Every degree you turn the knob is a different setting, allowing you to fine tune the damper unit to your needs. The knob assembly rotates 360 degrees left or right allowing you to go straight from the softest setting to the hardest setting, if need be. It will not unload, unscrew, or pop out, disabling your damper unit. The lower the number, the softer the setting. The higher the number the harder the setting. Very simple and very effective.

Does GPR actually make the stabilizer, or just sell/distribute them?
GPR is proud to say that they manufacture, assemble, and test every GPR unit in their San Diego facility. The only thing they outsource is our seals, bolts, and oil. Every damper mount and post mount bracket is R&D'd, then manufactured in house for a true 100% fit and quality assurance. Instead of a cast mold post mount, or a one "fit all" drill and tap bracket, all mounts and brackets are CNC machined in house for top quality. GPR has the knowledge of prototyping a new bike in a relatively short turn around time, usually in just a few days. GPR doesn't like to wait for others to fabricate a mount first. That's why GPR post mounts/brackets are often imitated, but never duplicated.

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Click on the image above to view the GPR V4 product page

GPR Steering Stabilizer Application Chart:
Manufacturer Model Year
Part Number(s)
Honda CB1000 2011
5011-4067
Honda CBR600F4I 99-04
5011-4036
Honda CBR600RR 03-04
5011-4021
Honda CBR600RR 05-06
5011-4018
Honda CBR600RR 07-09
5011-4001
Honda CBR900RR 98-99
5011-4039
Honda CBR929-954 00-03
5011-4022
Honda RC51 02-05
5011-4026*
Honda CBR1000RR 04-07
5011-4000
Honda CBR1000RR 08-11
5011-4038
Kawasaki ZX6R 03-04
5011-4025
Kawasaki ZX6R 05-06
5011-4016
Kawasaki ZX6R 07-08
5011-4008
Kawasaki ZX6R 2009
5011-4044
Kawasaki ZX10R 2011
5011-4062
Kawasaki ZX10R 06-07
5011-4009
Kawasaki ZX10R 08-09
5011-4037
Kawasaki ZX14 06-11
5011-4015
Kawasaki Ninja-250 08-10
5011-4048
Suzuki GSX-R600 97-00
5011-4040
Suzuki GSX-R600 01-05
5011-4019
Suzuki GSX-R600 06-07
5011-4006
Suzuki GSX-R600 08-10
5011-4029
Suzuki GSX-R600 2011
5011-4063
Suzuki SV650 03-11
5011-4058
Suzuki GSX-R750 96-00
5011-4040
Suzuki GSX-R750 01-05
5011-4019
Suzuki GSX-R750 06-07
5011-4006
Suzuki GSX-R750 08-10
5011-4029
Suzuki GSX-R750 2011
5011-4063
Suzuki SV1000 03-11
5011-4058
Suzuki GSX-R1000 01-02
5011-4019
Suzuki GSX-R1000 03-04
5011-4032
Suzuki GSX-R1000 05-06
5011-4017
Suzuki GSX-R1000 07-08
5011-4007
Suzuki GSX-R1000 09-11
5011-4047
Suzuki Hayabusa 98-06
5011-4014
Suzuki Hayabusa 08-11
5011-4035
Yamaha R6 99-01
5011-4024
Yamaha R6 02-05
5011-4023
Yamaha R6 06-07
5011-4005
Yamaha R6 08-11
5011-4034
Yamaha R1 98-01
5011-4027
Yamaha R1 02-03
5011-4002
Yamaha R1 04-06
5011-4003
Yamaha R1 07-08
5011-4004
Yamaha R1 09-11
5011-4046
Yamaha FZ-1 06-11
5011-4050
Triumph Daytona675 06-08
5011-4010
Triumph Daytona675 2009
5011-TBD
Ducati 749-999 04-08
5011-4011*
Ducati 1098 06-08
5011-4013*
Ducati 848 08-11
5011-4033*
Ducati Hypermotard-1100 08-11
5011-4042*
Ducati Hypermotard-1100 EVO 10-11
5011-4066*
Ducati Hypermotard-796 10-11
5011-4064*
Ducati Monster 1100-696 09-11
5011-4052*
Ducati Monster 796 09-11
5011-4065*
MVAgusta F4 All
5011-4012*
MVAgusta Brutale All
5011-4041*
Buell XB-Firebolt All
5011-4028
Buell Lightning All
5011-4043
Buell 1125R All
5011-4045
Buell 1125CR All
5011-4061
BMW S1000RR 09-11
5011-4054*
BMW R800GS 08-11
5011-4060*
BMW R1200GS 08-11
5011-4059*
Aprilia Dorsoduro 09-10
5011-4049
Aprilia RSV4 09-10
5011-4055
Aprilia RS125 06-11
5011-4068
KTM Super-Duke-990R All
5011-4051
KTM RC8 09-10
5011-4056
KTM RC8R 09-10
5011-4057



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