The King Kong Klutch has the highest torque capacity of any wet Big Twin clutch 8620 steel sprocket K2 proprietary high energy friction material has a superior coefficient of friction and long life 20 one-sided friction plates balance temperature and head dissipation Exclusive Baker 1-piece basket and ring gear Light (yellow), medium (red), and heavy-duty (blue) clutch springs included Outside support spider version available for use with Function-Formed Primary 630-955 AC/DC pinion gear is available to convert 1994-2006 102-tooth applications to a 66-tooth ring gear as 102-tooth ring gears are known to break when using a performance engine All billet 6061-T6 aluminum Function-Formed design 38-tooth sprocket