636cc Upgrade Kit – Exchange

High quality plated bore and Omega quality piston kit together with genuine Rotax O rings and gasket.

This kit will only be sent AFTER we receive your 604 undamaged & cleaned cylinder for exchange.  Please order in the normal way, then arrange to send us your 604 cylinder only first.  We should be able to despatch 640 kit on the same day your 604 cylinder is received.

PLEASE ENSURE IT IS WELL PACKED TO AVOID DAMAGE.