There are 2 types of gaps for adjusting by riders’ requirement.
Curved gap: comfortable riding and save gas.
Straight gap: racing riding, rpm reacts fast.
Change secondary sliding sheave assy. to increase speed changing stroke.
Make low speed power input early and extend end speed.
Need to maintain oil seal regularly.
This is increasing stroke product, so it needs more space for working. Suggest using NCY or original clutch housing. If using other brand housing, just grind it when it is needed.
Price is set (Clutch with Clutch housing)
Made In Taiwan