Here is the new high 70cc BIDALOT Racing engine in diameter Ø47,6mm for mécaboite driving DERBI euro 3 and euro 4 which will fit perfectly with any reinforced vilo of good quality.
Many modifications have been made such as transfers and corrected exhaust (diagram revised upwards). The bore is always 47.6mm in diameter. These latest modifications have of course one and only one goal, always to optimize performance at high speeds while preserving maximum torque and power at low and mid-speed.
Its piston is a high-end single segment racing model which will reduce friction and consequently increase high speeds. It is equipped with a thin segment in curved lapped chrome steel, its 13 X 39mm axis and reinforced clips. The cylinder is obviously in aluminum with always its specific treatment and nikasil coating. The cylinder head stud preserves its high compression combustion chamber and is accompanied by the famous cylinder head cover.
Delivered with all the necessary screws (studs, nuts ...) for the assembly of this kit. An explanatory note in French will accompany you in the assembly with the recommendations of the BIDALOT brand for the setting of the high engine.
This pack contains:
-Aluminum cylinder 6 large exhaust transfers with Ø47.6mm bar
-Blue machined aluminum cylinder head cover
-Plot of cylinder head with high compression chamber polished finish
-Piston mono segment Ø47,6mm
-Segment end chrome Ø47.6 X 0.8mm
-C piston clips
-Piston axis Ø13 X 39mm
-X4 cylinder studs lengths 110mm X Ø7mm
- Stud nuts, cylinder head screws
-6 reinforced aluminum base gaskets of different thickness
- Cylinder head O-rings
-Information notice, assembly
- Stickers
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!
