RRD high compression cylinder head with decompressor for kit 75cc Ø47mm on MOTOBECANE AV7 / MBK 40, 50 ... New model

Many of you asked for it, so we did. Here is the RRD Ø47mm high compression cylinder head for AV7 engine equipped with a 75cc kit in diameter 47mm. This cylinder head to couple well to the era of MOTOBECANE AV7 engines, to the intake without valves of these and its architecture .... New model with "low" engine mounting.



Our cylinder head preserves a room like the original in cap. It also preserves an original aesthetic aspect. It is a 40mm base cylinder head, fully digitally resurfaced for perfect, controlled planning, and with a chamber specifically increased to 47mm with a calculated angle. It will provide maximum performance to your high 47mm diameter engine and mate perfectly!



We recommend it with SP98, a 0.9mm squish (you can go down to 0.7mm or go up to 1.1mm depending on the performance you're looking for). The finish of the room and the planning is obviously excellent. The price may seem high, but it is low in view of the work done on these cylinder heads digitally in small series with complex and ultra-precise adjustment.



During the planning, increase in compression and recovery of the angle, the diameter of the chamber, we also digitally affixed the RRD logo.