Kit 163,5cc Ø69mm ATHENA racing for HONDA CRF 150 4T 2007 to 2010

Complete ATHENA high quality high performance kit! Aluminum cylinder with high quality nicasil treatment, made in Italy.

VERTEX forged piston, high compression with pre-ground steel segmentation! Joint ATHENA (one of the best joint manufacturer in the world), we are clearly on the very high end.

The increase in the displacement, the compression as well as the reduction of friction, of the temperature in the room will offer more performance to your machine! Here, it is not really the maximum power gain that is sought! Power comes sooner, faster, and a good increase in torque is present!

It is all that make it a very robust and efficient kit. Mounts with the original cylinder head without modification of the latter. With this large diameter kit which offers a lot of torque, the ATHENA racing camshaft is highly recommended, it saves power at top speed (without risk of loss at the bottom thanks to the large kit).

Ø66mm (+ 3mm from origin to origin)
For original stroke 43.7mm
Compression ratio 12.2: 1 (original 11.7: 1)

Power 27.4hp (original 24.5hp)

Power with the ATHENA 28,4hp camshaft