FMF Racing Dirt Bike Factory 4.1 RCT Exhaust RETIRED JUL 2026 We know how important stopping

We know how important stopping leaks is

KLIM's F3 helmet is a most-valuable riding partner

Mounts to any 3/8" ratchet

Double Lens for Torque X Helmet

FMF Racing Dirt Bike Factory 4.1 RCT Exhaust RETIRED JUL 2026 We know how important stoppingFEATURES The Factory 4. 1 RCT incorporates FMF's Resonance Chamber Technology both internally and externally In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering moving the muffler closer to the motor to centralize mass Constructed from only aerospace grade materials that meet their exacting specifications and is manufactured 100% at their Southern California