RRD cylinder head Ø47mm high compression air with relief cock for 75cc kit on MBK 51 / av10 motobecane

You were very numerous to ask us, so we did. Here is the RRD Ø47mm cylinder head high compression decompression for av10 engine equipped with a 75cc kit 47mm diameter.



RRD preserves head room as originally cap. It also preserves an appearance of origin. This is a basic cylinder head 40mm, fully ressurfacée digitally for perfect planning, controlled, and with a specially-passed Chamber 47mm with a calculated angle. It will provide maximum performance is your top motor 47mm diameter!



We recommend it with the SP98, a squish 0,9mm (you can descend a 0.7mm or 1.1mm depending mount a performance that is sought). The finish of the room and planning is obviously excellent. The price may seem high, it is however down to the work done on these yokes numerically small series, adjustment is nevertheless complex.



When planning, increased compression and recovery of the angle, the diameter of the room, we also digitally affixed the RRD logo.