Attention: See Warning Below Before Purchase! Returns will not be accepted after kit is installed! 

420 Sealed X-Ring Primary Drive System For E Ride Pro SR

DirtyBike primary chain drive system with sealed X-ring chain minimizes drag and reduces chain noise, providing a longer lasting drive system. 

Warning! Some 3.0 and SR models can have an interference issue with this kit!
As the primary chain is adjusted the motor moves rearward. If moved back far enough the motor can interfere with the final drive chain. It may be necessary to increase this clearance by grinding one or two of the motor fins where the contact is happening. If you are not OK with doing this, please do not purchase this kit. 

This is a much stronger chain and is considered a necessary upgrade for off-road riders. If you ride in dusty, sandy or muddy conditions you will eventually have primary belt slippage which will cause failure of the stock primary belt. Upgrading to a chain kit means you are less likely to be stranded in the middle of nowhere.

420 Sealed X-ring chain with master link can be replaced easily without removing the swing arm.

This kit comes with DirtyBike exclusive 1mm aluminum alignment shim allowing you to adjust the sprocket alignment for a quieter, longer lasting drive system.

Buyers and Maintenance Guide

Installation Tool

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