the axle is for large power differential up to 1100cc engine,with 3 forward speed and 1 reverse speed:

Fit engine from 250cc-- 1100cc.

Forward Ratio:10:31,15:35,4.66:31,

Reverse ratio:4.56:31

Weight:50kg

cast iron shell,with strong load capacity.

load capacity:<=2Ton

length:1040,1280,1350

wheel hub Diameter:180.200,220

4 speed transaxle(driving axle)