Heavy Duty, LR Torsion Arm, Straight, 600cc, 7/8" x 13" for X4, X6, & X7 Wings then a splined tapered spacer

then a splined tapered spacer (05-155) used against the nut

Use with 054-series axle nuts

enabling the nut to be tightened to the exact load preference

No sprocket is included with this clutch

Hyper Racing # 141-330

Heavy Duty, LR Torsion Arm, Straight, 600cc, 7/8" x 13" for X4, X6, & X7 Wings then a splined tapered spacerHyper Racing # 40 175HD Heavy duty 3 4" thick version of the standard version of the 40 175 torsion arm. Depending on if your left rear rack is offset or not (we have changed this several times over the years) and which engine platform you use, you may or may not need the 40 176 offset left rear arm to get the optimal left rear bearing carrier position. It is best to get the left rear bearing carrier out closer to the sprocket to allow the use of