Kit 185cc ATHENA Ø63mm, cylinder / piston + electronic box calculator for YAMAHA WR 125 X, WR 125 R, YZF 2008 to 2011

Here is a real kit of competition which mounts motorcycle 125 4T. Here is the list of applications:

MOTO 125cc 4 stroke :

YAMAHA YZF 125 R

WR 125 R

WR 125 X

2008-2011

The kit is also mounted on many other motorcycles! But not the reprogramming box!

*Please note, electronic equipment cannot be returned or exchanged!

This kit will put your nice 125cc in a nasty 182,58cc real power and torque to perfection! To cap off this high engine, ATHENA delivers it with a computer case that enhances ignition and injection. The power gain is extreme, not to put between any hands, experienced driver requires! Level solidity no problems, this kit is really planned for the endurance, the kilometers ... Here is the file of the test bench of this monster:

The cylinder is made of high-quality aluminum thus improving heat exchange and engine cooling by better heat dissipation. The piston is a compact and powerful model, designed to fit perfectly with the cylinder. obviously delivered complete with all its segments, clips and piston pin. You can trust the photographs, they are contractual and represent the real kit and all the associated accessories.



This pack contains :

-X1 Cylinder
-X1 Piston
-X5 Segments
-X2 Clips
-X1 Piston pin
-X1 Pack attached
-X1 CD for electronic box
-X1 electronic box calculator
-Autocollants

Technical characteristics :

-Diameter 63 mm (against 52 mm of origin)
-Course 58.6 mm (as original)
-Cylinder 182,6cc (against 124,7cc of origin)
-Compression ratio 11.4: 1 (against 11.2: 1 of origin)
-12.30 Kw / 16.5 HP / 8000 rpm (against 9.70 Kw / 13.0 HP / 9300 rpm of origin)