Motorcycle spare parts> Simson> SR4-2 Star - Spare parts catalouge from 1966> Engine> 11. Cylinder, piston, crankshaft>
Motorcycle spare parts> Simson> SR4-4 Habicht > Engine> 11. Cylinder, Piston, Crankshaft>
Motorcycle spare parts> Simson> Schwalbe KR51 > KR51/1> Engine> 15. Cylinder, piston, crankshaft>