Variator Sleeve Motoforce Racing with shims MBK Nitro / Aerox

Variator Sleeve Motoforce Racing with shims MBK Nitro / Aerox.

Including:

• Variator bush / sleeve 1 mm (shorter than original) Yamaha / MBK: 13x18x37 mm instead of 13x18x38 mm (original)
• Shims Stage6 d.13mm Minarelli

The V-belt is often jammed between the variator and pulley, which leads to loss of power. To fix this problem, all you have to do is remove the fan wheel and pulley and check if the belt is stuck. Place the shims on the crankshaft stub until they butt up against the bushing. Install the pulley / fan wheel again, put the nut on, done.

Use this combination of variator bushing (-1 mm) and shims to adjust the variator and improve acceleration and pull.

Note: Adding or removing shims can cause misalignment of the starter motor. You can compensate for the difference by adding shims to the back of the variator.

• For Minarelli with d.13x18mm sleeve