Full circle crankshaft from the Portuguese crankshaft specialist Top Racing / Jasil. The crankshaft fits all Zündapp 2-speed, 3-speed and 4-speed engines with manual or foot shift. Top quality. Made in Europe.The crankshaft can be replaced without adjustment work. It offers the advantage of a higher pre-compression. This leads to a better filling ratio and increased engine power. In addition, the engine runs with less imbalance and vibration.Suitable for:CS 25, CS 50, HAI 25, 50, CX 25 50 [type 448]C 50 Sport [type 517 and 529]GTS 50 [type 517 and 529] (not suitable for 5-speed)R 50, RS 50 [type 561]ZD 20 25, TS 40 and 50 TS [type 446]ZL 25, ZS 25, ZE 40 [type 460]C 50 Super [type 441]ZX 25, X 25 [type 460]