Stepped Front Hub (Black)5/8" front, 3/4" back bearings
Typically used on Right Front of oval karts.
Spindle shaft must be stepped with 3/4" OD on inside and 5/8" OD on outer portion for...
3/4" hub bearing, usually intended for the backside of an extended right-front hub on an oval kart that utilizes the stepped size spindle.
Bearing is marked R12 RS
This bearing has an OD of 1...