Here is the 50cc bi-segment cast iron kit from TOP PERFORMANCES for mécaboite 50cc derbi euro 3 and 4 engine, it is certainly in cast iron but MINACROM treated with also a chrome exterior treatment, diameter 40 millimeters, diagrams revised downwards for the torque, this one has 5 transfers, oval exhaust, it is clean and finished.
This one is accompanied by a piston TOP PERFORMANCES reinforced bi segment, end chrome bomé 1.5mm thick with piston pin Ø12 X 40mm, as well as its clips in C.
It also has an aluminum stud bolt with a high compression chamber, hemispherical and polished finish, this one has a water pipe connection above fixed by 3 screws M5 X 14mm.
Clearly, you will understand that this kit offers acceleration and recovery, ideal for lovers of engine torque.
We recommend it to those who want something between big power (especially torque) and solidity, delivered as presented.
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!
