Cylinder Zundapp Supertherm 45mm, ST2 - Ported and machined by Tiveden engine, 14+ hp

Zundapp superthermcylinder ST2 porting developed in collaboration between Tivedens motor, Mopedrenovering.se and NTS. The cylinder has a cast iron core, drillable to 46mm with split exhaust port and is ported by Tivedens Motor. Comes with 45mm NTS piston. Fits all exhaust systems on the market. Delivers 14+ hp at about 10800 rpm and has a torque of 10.5 Nm at about 8600 Rpm with RP exhaust system and Mikuni 20mm carburetor.