Heavy Duty, LR Torsion Arm, Offset, 600cc, 7/8" x 13" for X4, X6, & X7 hyper-racing except the X7 in the

except the X7 in the axle forward position

Hyper Racing # 06-228-K

Adjustment of both pedals front or back as far as you need in minutes

Hyper Racing # 389-306

Genuine NSK Brand Bearing

Heavy Duty, LR Torsion Arm, Offset, 600cc, 7/8" x 13" for X4, X6, & X7 hyper-racing except the X7 in theHyper Racing # 40 176HD This is the heavy duty 3 4" thick version of the 40 176 torsion arm. Our offset left rear torsion arm can be used to bring the left rear bearing carrier out closer to the sprocket to allow the use of shorter chain guide block spacers. This will apply less force on the bearing carriers bearing from chain force also it will keep the chain block from flexing out of alignment. It will also increase the effective spring and shock