Air kit 50cc d.39m TNT Original type aluminum MBK 51 / av10 motobecane

Here is the kit / cylinder - piston from TNT, The cylinder is an AIRSAL T4 base, so it has 2 side transfers and 2 rear transfers, the nykasil is of very good quality, aluminum too. Lepiston has a half moon back to improve scanning. This cylinder with slightly higher diagrams than the original offers some additional performance. The channels are very clean and the oval exhaust is wider than the original rectangular one.

This cylinder will therefore be a very good compromise for a refurbishment of your original engine and this for a really attractive price.



The piston has 2 segments 1.5mm thick, thinner than the original, they will limit friction and allow better high speeds. For this price, what more could you ask for!

The pack contains:
Piston
Segments
Piston clips
Piston pin
Cylinder

Pack seals

As an option we offer 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!