O.S.Speed R2106

O.S.Speed R2106 3.5cc On-Road Racing Engine |
New (vs R2105): • New Piston & Liner (the piston has now three oil-grooves) • New stronger "R" con-rod • R21-Euro II crankshaft • Ceramic main ball bearing • Revised 21M carb |
O.S.Speed R2106 3.5cc On-Road Racing Engine |
New (vs R2105): • New Piston & Liner (the piston has now three oil-grooves) • New stronger "R" con-rod • R21-Euro II crankshaft • Ceramic main ball bearing • Revised 21M carb |