Air kit 50cc d.39mm DOPPLER ER1 aluminum MBK 51 / av10 motobecane

It is no longer to present, the famous DOPPLER ER1 cylinder for MBK 51, this small 50cc air-cooled kit, has a high-end single-segment piston with side grease nipples, the cylinder is of good quality, in treated aluminum nikasil.

6 intake transfers with booster exhaust, it is directly taken from real competition cylinders. It is on the market one of the best 50cc kit for MBK 51 with MALOSSI and POLINI. It has a relatively correct price!

Its diagrams are not extremely high, which will allow it not to require a very greedy configuration, a good small 15mm PHBG to 19mm PHBG or even CP of polini with 0.35mm valve blades, an exhaust (Doppler ER1 to do well ) and a good variator that uses the right power regime and it will be perfect.

As an option we offer you a stage 1 preparation, this preparation is a modification of the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement to the bottom of the skirt is also included in this modification. Allow a little extra time for this preparation!