If you ride in dusty, sandy or muddy conditions you may have primary belt slippage and you will eventually fail the stock primary belt, possibly leaving you stranded in the middle of nowhere. Don’t let this happen! Install a db Dirty Bike Industries primary chain drive system. This primary chain drive kit is much stronger, and a necessary upgrade for the serious off-road rider. Maintains stock gear ratio.
420 non o-ring chain with master link can be replaced easily without removing the swing arm.
Dirty Bike Industries exclusive 1mm aluminum shim allows you to adjust the sprocket alignment for a quieter ride.