In aluminum and delivered with a 2-part high compression cylinder head with hemispherical chamber, this TNT is directly classified in the RACING range.
![cylinder head stud cylinder derbi euro 3 tnt racing motorcycle 50cc culasse plot cylindre derbi euro 3 tnt racing moto 50cc](https://www.rrd-preparation.com/img/cms/from_form/dsc02561_desc.jpg)
The finish is really perfect and despite the reputation that we sometimes hear on TNT, we as connoisseurs and preparers simply find this sublime cylinder for such a small price!
![diagrams light exhaust booster derbi euro 3 kit 50cc power speed peak gain torque diagrammes lumière échappement booster derbi euro 3 kit 50cc puissance vitesse pointe gain couple](https://www.rrd-preparation.com/img/cms/from_form/dsc02562_desc.jpg)
The cylinder head is very well worked with this hemispherical chamber, with stud and high compression, no concern for an increase in performance while preserving good cooling.
![tnt racing kit derbi euro 3 alu 50cc power cheap low price solid kit tnt racing derbi euro 3 alu 50cc puissance pas cher bas prix solide](https://www.rrd-preparation.com/img/cms/from_form/dsc02564_desc.jpg)
The piston is equipped with 2 thin segments so as not to brake at high speeds but to preserve torque, this piston also has side grease nipples to maintain the oil and help the engine greasing.
![kit tnt power cylinder piston cylinder head stud derbi euro 3 40mm 50cc kit tnt puissance cylindre piston culasse a plot derbi euro 3 40mm 50cc](https://www.rrd-preparation.com/img/cms/from_form/dsc02565_desc.jpg)
The cylinder is really good, the finish is impeccable, it has a boosters exhaust and slightly increased diagrams for a little more performance. It is obviously delivered with its gaskets, its cylinder head cover, its clips, its piston pin ...
![high primer tightening engine tnt aprilia rs mx rx derbi euro 3 x-trem x-race drd gpr serrage amorce haut moteur tnt aprilia rs mx rx derbi euro 3 x-trem x-race drd gpr](https://www.rrd-preparation.com/img/cms/from_form/dsc02566_desc.jpg)
Mounts on DERBI and APRILIA 50cc motorcycles after 2006 with euro 3 and 4 engine!
![high engine thermal group primer tight tightening derbi euro 3 cheap 50cc powerful haut moteur groupe thermique amorce serrage serré derbi euro 3 pas cher 50cc puissant](https://www.rrd-preparation.com/img/cms/from_form/dsc02567_desc.jpg)
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!