Cultivated air MVT G1 RADIAL high compression without decompressor for high motor 50 Ø39mm on MBK 51 / motobecane av10

Attention the O-ring is not delivered with !

Ideal for laying on a good 50cc Ø39mm cylinder, here is the cap MVT RADIAL high compression. This head has an incoming polished hemispherical chamber for better resistance of the oric head joint. On some cylinders, to have a good squish, it is possible that the cylinder base should be fixed. This allows the passage to increase the diagrams, which is a very good thing on cylinders like the DOPPLER ERA1 for example! The installation on aluminium head joint for no longer that the chamber is incoming is entirely possible. The alloy, although very granular to the touch, allows excellent cooling (thermal conduction). This head gives a relatively high compression rate (around 13:1 according to squish and accompanying piston), it is recommended on high diagram cylinders (around 190° to exhaust).

Incoming plot of 0.65mm (to forecast your hold, be careful to add a squish)

For long cap spark plug

12.5nm torque lock