Bike Parts

Fits The Following Bikes: Yamaha YZ250 2003-2023 Silencer Description: The R-304 silencer was developed as a full-race two-stroke silencer. The compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing only. Hex head screws are used to secure...

The “Next-Generation” in start devices Spring-less design delivers positive engagement and consistent release “Easy set by rider” start trigger CNC machined exclusively from aircraft grade aluminum Lightweight, complete assembly only 50 grams Custom drill guide template and countersinking tool included Detailed installation instructions include...

Hinson Clutches are championship proven by almost every major factory team and rider in the world, including Eli Tomac, Ken Roczen, Cooper Webb, Tim Gajser, Jeffrey Herlings, Jeremy Seewer, Chase Sexton, & Joey Savatgy. Hardcoated for extreme boot wear resistance Much stronger than stock,...

Fits The Following Bikes: KTM 125/150 SX 2019-2022 Husqvarna TC 125 2019-2022 GasGas MC 125 2021-2022 Pipe Description: The original Pro Circuit Works Pipe offers unparalleled performance and power for every two-stroke application. Increased horsepower and torque gains will quickly be noticed across the...

Hinson Clutches are championship proven by almost every major factory team and rider in the world, including Eli Tomac, Ken Roczen, Cooper Webb, Tim Gajser, Jeffrey Herlings, Jeremy Seewer, Chase Sexton, & Joey Savatgy. Hardcoated for extreme boot wear resistance. Much stronger than stock,...

Fits The Following Bikes: Yamaha YZ125 2022-2023 Pipe Description: The original Pro Circuit Works Pipe offers unparalleled performance and power for every two-stroke application. Increased horsepower and torque gains will quickly be noticed across the entire rpm range. The unplated, oiled metal finish requires...

Hinson Clutches are championship proven by almost every major factory team and rider in the world, including Eli Tomac, Ken Roczen, Cooper Webb, Tim Gajser, Jeffrey Herlings, Jeremy Seewer, Chase Sexton, & Joey Savatgy. Hardcoated for extreme boot wear resistance Much stronger than stock,...

Fits The Following Bikes: Yamaha YZ125 2002-2021 Silencer Description: The R-304 silencer was developed as a full-race two-stroke silencer. The compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing only. Hex head screws are used to secure...

Fits The Following Bikes: Kawasaki KX80-85-100 1998-2022 Kawasaki KX112 2022 Suzuki RM100 2003-2005 Silencer Description: The R-304 silencer was developed as a full-race two-stroke silencer. The compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing only. Hex...

Fits The Following Bikes: Kawasaki KX85/100 2014-2022 Pipe Description: The original Pro Circuit Works Pipe offers unparalleled performance and power for every two-stroke application. Increased horsepower and torque gains will quickly be noticed across the entire rpm range. The unplated, oiled metal finish requires...

Fits The Following Bikes: Husqvarna TC 125 2019-2022 KTM 125/150 SX 2019-2022 GasGas MC 125 2021-2022 Silencer Description: The R-304 silencer was developed as a full-race two-stroke silencer. The compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course...

Fits The Following Bikes: Yamaha YZ125 2005-2024   Cover Description: Pro Circuit Clutch Covers are CNC machined from T-6 billet aircraft-grade aluminum to improve durability and heat dissipation, which improves performance. These covers are designed to be stronger and lighter than the stock clutch...

Hinson Clutches are championship proven by almost every major factory team and rider in the world, including Eli Tomac, Ken Roczen, Cooper Webb, Tim Gajser, Jeffrey Herlings, Jeremy Seewer, Chase Sexton, & Joey Savatgy. Hardcoated for extreme boot wear resistance Much stronger than stock,...

Packing Size: 16" x 3.5" Packing Description: Each silencer packing kit includes all the packing and hardware needed to keep your bike running quietly and at its very best. Pro Circuit recommends re-packing your exhaust every 10-15 hours, but it varies between riders For...

Fits The Following Bikes: Honda CR250R 2002-2003 Silencer Description: The R-304 silencer was developed as a full-race two-stroke silencer. The compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing only. Hex head screws are used to secure...

CNC’d and formed .080 gauge aircraft grade 5052 aluminum Available in raw Silver, or durable Black satin powder coating Reinforces radiators to help prevent costly radiator replacement CNC’d billet bracket system incorporates rubber vibration isolators Lightweight, custom fit, tuck in cleanly behind radiator shrouds...

CNC"d and formed from aircraft grade 5052 aluminum Simple bolt-on installation Smoothes out the rough edges on your bike and creates flatter surfaces for better grip and control All necessary mounting hardware included Made in the USA 

CNC"d and formed from aircraft grade 5052 aluminum Replaces the plastic stock unit Simple bolt-on Mounting hardware included Made in the USA 

CNC"d and formed from aircraft grade 5052 aluminum Factory Edition Black satin powder coating Reinforces radiators to help prevent costly radiator replacement CNC"d billet bracket system incorporates rubber vibration isolators Lightweight, custom fit, tuck in cleanly behind radiator shrouds Simple bolt-on Mounting hardware included...

The "Next-Generation" in start devices Spring-less design delivers positive engagement and consistent release "Easy set by rider" start trigger CNC machined exclusively from aircraft grade aluminum Lightweight, complete assembly only 50 grams Custom drill guide template and countersinking tool included Detailed installation instructions include...