Crankshaft Sport version S51 , KR51 / 2, SR50, S53 new

Crankshaft Sport version S51 , KR51 / 2, SR50, S53 new

Fits types S51 , KR51 / 2, SR50, S53
The crankshaft has an additional plastic sheathing in the cheeks of the crankshaft . The bores in the crankshaft are nhälften sealed with plastic plugs, this causes a greater compression in the crankcase
The crankshaft is supplied complete with a needle bearing for the piston pin
The item is a completely new production and a high quality product