YAMAHA YZF R1 2007-2008 Forged piston kit of the extra class 77.00 mm

The pistons are supplied with matching piston rings, pins and clips. The cylinder must be re-honed with special diamond honing

stones. The cylinder honing is necessary with regard to the correct running clearance and the surface roughness corresponding to

the piston ring.

Year of construction 2007-2008.