Kit 80cc Ø50mm ATHENA RACING for motorcycle KTM 65 SX and XC until 2009

Kit high engine 80cc large diameter 50mm for KTM 65 SX and XC from 2001 to 2008 2T. In high quality aluminum, specific performance diagrams, excellent torque power ratio, hard chrome convex mono-segment piston end for less friction with improvement for better ballaying, special cooling diagram ...

 

 

This kit is a real performance monster. Delivered 100% complete with gaskets, cylinder head, piston, segment, axle, clips, cylinder,… Very solid, it will be an excellent ally for your after mini and full day of enduro in full heat! The cylinder has a very high-end Eurocilindro treatment, the piston is a real vertex!

 

 

Ø50mm against 45mm for the origin

Stroke 40.8mm

Compression ratio 15.0: 1 against 13.3: 1 for the original

Power 19.3 hp against 15.8 for the original

12nm torque at 10,000 rpm against 10nm for the original

 

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!