Adjustable Spring Clutch Support Plate from Xiu-rdi Engineering, with three different mounting positions. Changing from position one thru three you can choose different spring clutch pre-charge. From number one (lower), to number three (higher) spring pre-charge. Position one equates to the original spring clutch support. Stainless steel screws are supplied in each clutch control set. The conical profile improves oil flow into the discs which improves cooling and reduces wear. With this clutch control, Xiu-rdi Engineering offers an adjustable solution to high level trials riders in search of precision and control.
A.-With new pads you can start with position num.1 or 2, depending your preferences.
B.-After some working time, pads will be adapted and will be thinner. Then you can choose a higher number, until position num.3.