Heavy Duty, RR Torsion Arm, Offset 1-1/8", 7/8" x 11 1/2", 600cc micro sprint Tools screws (2) and bulkhead with

screws (2) and bulkhead with O-ring

0" hex (measured across the flats)

ARS 1074 Aluminum Shock is a 7" stroke

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

Hyper Racing # 383-300

Heavy Duty, RR Torsion Arm, Offset 1-1/8", 7/8" x 11 1/2", 600cc micro sprint Tools screws (2) and bulkhead withHyper 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