Adjustable at back.

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.


Quick and easy to mount. Includes all fittings.
Quick and easy to mount. Includes all fittings.

Front brake caliper bracket to suit WP forks.  For use when swapping to Supermoto wheels using the 320mm brake disc.


Front brake caliper bracket to suit WP forks.  For use when swapping to Trail wheels using the 260mm brake disc.

If your CCM has Renthal Fat Bars, the L/H part of handlebar where grip slides onto is knurled to help the grip stick. This may need filing slightly to help decompression lever slide over it. Alternatively order Decompressor kit B to have a lever with a split clamp.

If your CCM has Renthal Fat Bars, the L/H part of handlebar where the grip slides onto is knurled to help the grip stick. This lever has a split clamp so that there is no need to remove the left grip to fit the lever. This type of lever uses a internal screw to clamp the inner cable, so you will need to cut the cable nipple off to length and thread it into the lever. Kit A is more simple here as it has a fixed length cable with a nipple each end and does not need to be cut.
These springs are suitable for Rotax header pipes and also the 644 link pipes.

A six-step maintenance system designed to clean any K&N Filtercharger® Air Filter. Restores air flow efficiency so your Filtercharger performs like new! Includes: .5 oz. Spray Oil & 12 oz. Filter Cleaner