Polini Swingarm "TORSEN WD" Yamaha Aerox / MBK Nitro

Torsen WD swingarm from Polini

Polini has taken a big leap in engine casing stabilization with the Torsen WD. Stock engine cases and variator covers aren’t built to handle the extreme forces generated by heavily tuned engines. Off-road use or stoppies can also put major stress on the engine casing and rear wheel mounting, potentially leading to cracks or damaged bearings.

Design and Benefits of the Torsen WD racing swingarm

The TORSEN WD stabilizer is made from high quality aluminum and mounts between the right side of the engine casing and the rear wheel. It absorbs a large portion of the forces acting on the rear end, stabilizing the wheel guidance, bearings, and casing. The scooter’s handling, especially in corners, is noticeably improved. In addition, optimized wheel alignment reduces uneven tire wear.

• Stabilization of crankcase and bearings
• Increased rear-end stability
• Safer ride and more stable handling
• Reduced tire wear

Compatibility Polini Torsen WD

The Torsen WD is designed for the Polini Big Evolution and the newer Polini For Race exhaust systems; the bracket may have to be adapted for other exhaust systems.

MBK Nitro / Yamaha Aerox.