DirtyBike Primary Driven Sprocket Shim — 1mm Thick Aluminum

For all DirtyBike 420 and 219 Primary belt to chain conversion kits.

Is your primary chain drive louder than you want? The Surron Light Bee frame varies over time and when you install a primary chain drive you may find that the alignment from the motor sprocket to the primary driven sprocket may be off.

This causes a lot of noise and premature wear on the sprockets and the chain. Bring those sprockets back into alignment with a DirtyBike primary driven sprocket shim.

Shims are 1mm thick aluminum and most bikes usually only need one shim. Shim fits between the driven sprocket and the jack shaft.