It is no longer to present, the famous DOPPLER ER1 cylinder for PEUGEOT 103, fox and HONDA wallaroo, this small 50cc air-cooled kit, has a high-end mono-segment piston with side grease nipples, the cylinder is good quality, in nikasil treated aluminum.
5 intake transfers with booster exhaust, it is directly taken from real competition cylinders. Its diagrams are not extremely high, which will allow it not to ask for a very greedy configuration, a good small 15PHBG with 0.35mm valve blades, an exhaust (Doppler ER1 to do well) and a good variator which exploits the good power regime and it will be perfect.
A real replica of G1 which has a very worked piston (robust, light with side grease nipples and thin segment).
As an option we offer a stage 1 preparation, this preparation is a modification of the channels and the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement to the piston and the bottom of the skirt is also included in this modification. Allow a little extra time for this preparation!