RRD high compression cylinder head with decompressor for 70cc Ø45mm kit on MOTOBECANE AV7 / MBK 40, 50 ... New model

Many of you asked us for it, so we did. Here is the RRD Ø45mm high compression cylinder head for AV7 engine equipped with a 70cc kit in 45mm diameter. This cylinder head to couple well at the time of the MOTOBECANE AV7 engines, to the intake without valves of the latter and its architecture .... New model with "low" engine mount.



Our cylinder head preserves a chamber like the original cap. It also preserves an original aesthetic appearance. It is a 40mm base cylinder head, fully digitally resurfaced for perfect planning, controlled, and with a chamber specifically passed to 45mm with a calculated angle. It will offer maximum performance to your high 45mm diameter motor and mate to it perfectly! In addition to this, you need to know more about it.



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 are looking for). The finish of the room and the planning is obviously excellent. The price may seem high, it is however low in view of the work carried out on these cylinder heads digitally in small series with complex and ultra precise adjustment. In addition to this, you need to know more about it.



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

In addition to this, you need to know more about it.