YAMAHA Forged Aluminum Secondary Sliding Sheave Assy./ Black For NMAX 155

Aluminum secondary sliding sheave assy.:

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.

Riveting design to be firmer. 

Aluminum material to be lighter than original secondary sliding sheave assy.

Special surface pattern to radiate better to get longer lifetime.

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.