We have improved 30mm carburetors, piston and ring of M1, M1M and M1Super. If you use these special parts, your engine will raise 35% more power and reduce emission.
Protect Planet Earth, Enjoy these motorcycle with sidecar, please use our improved 30mm carburetors, piston and ring.
We type JB on second ring
We have the standard and the +0.25 size
How to install our improved piston and ring :
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