this axle is the oldest tricycle version,it is used for many years.
please see the below information of its detail
this axle has following feathure:
1.axle length can be made according to clients requirement,it has standard length 1260mm,1200mm,and 1160mm
2.Spring Distance is adjusted according to client requirement.
3.brake drum inner diameter is 180 or 220mm,or 160mm.
4 offset distance is 120mm from center.
5.axle tube diameter is 63mm seemless steel tube or weld steel tube.
6.reduction ratio as following:
also we can make it into disc brake as client requirement.
if you need hydraulic brake,plus 2usd