RRD cylinder head high compression with decompressor for kit 70cc Ø45mm on MOTOBECANE AV7 / MBK 85, 88 ... Old model

You were very numerous to ask us, so we did. Here is the RRD high compression cylinder head Ø45mm for av7 engine equipped with a 70cc kit 45mm diameter. This cylinder head for a good couple of the days of MOTOBECANE AV7 engine has intake valves free of these and architecture .... Old model with engine mounting "high".



Our 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 45mm with a calculated angle. She'll offer maximum performance is your top motor 45mm diameter!



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



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