HONDA CRF 450R (2009-2012) Tuning kit stage 2

The cylinder is 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. Additionally including high quality Carrillo connecting rods with pins and silver bearings, including dismantling / assembly and fine balancing of the crankshaft. The cylinder head will be completely redesigned (channels) including flow bench test (flow bench only by prior arrangement)