Wiseco leads the clutch aftermarket with high performance inner hubs. OEM inner hubs are made from inexpensive die-castings that quickly wear out. Wiseco offers the only forged clutch components in the aftermarket for off-road bikes and ATV applications. 

CNC-machined from lightweight forged aerospace-grade aluminum alloy, then hard anodized to reduce wear
PTFE coated to provide a near-frictionless surface for smooth operation
Reduced rotational mass for quicker recs; large oil passages for added lubrication and reduced operating temperature
Large oiling holes increase lubrication and reduce heat buildup
Clutch baskets come with fasteners complete with preapplied thread locker