Heavy Duty, RR Torsion Arm, Offset 1-1/8", 7/8" x 11 1/2", 600cc micro sprint Tools Includes (2) 055-1002 Radiused Reducers

Includes (2) 055-1002 Radiused Reducers to stack up against the shoulder

The scoop also helps cooling as it forces more air through the radiator by blocking areas where air would bypass the radiator

Hyper Racing # 383-300

screws (2) and bulkhead with O-ring

(5) 5/16-24 Titanium nylock nuts (

Heavy Duty, RR Torsion Arm, Offset 1-1/8", 7/8" x 11 1/2", 600cc micro sprint Tools Includes (2) 055-1002 Radiused ReducersHyper Racing # 40 171HD Heavy duty 3 4" thick version of the standard version of the 40 171 torsion arm. Fits '07 and up Hyper 600cc on the right rear. 1" offset. This arm provides more offset to move the right rear bearing carrier out. This is generally needed for use with longer paddles (11" & 12" paddle for this arm). It also depends on which Jacob's Ladder frame tab hole it is mounted to. Redesigned in 2017. The X4, X6, & X7 Hyper rear torsion