Shock trust bearing was used for 7.5hrs on trax shock. Large range of fitment but should fit all big bike ktm, gas gas and husky shocks. This helps with initial plushness by preventing shock spring binding from spinning upon compressing.  Fitment below from Pivot Works PW Shock Thrust Bearing Kit Gas-Gas EX250F 21, EX450F 21, MC125 21, MC250F 21, MC450F 21, Husaberg 390FE 10-11, 450FE 09-10, FE250 13-14, FE350 13-14, FE501 13, TE250 12-14, TE300 14, Husqvarna FC 250 (EURO) 15, FC 250 14-15, FC 350 14-15, FC 450 (EURO) 15, FC 450 14-15, FE 250 15, FE 350 15, FE 350s 15, FE 501 14-15, FE 501s 15, TC 125 14-15, TC 250 14-21, TE 125 15, TE 250 15, TE 300 15, KTM EXC 125 00-02, EXC 200 00-05, EXC 250 00-05, EXC 300 00-05, EXC 380 00-02, EXC 400 00-02, EXC 450 03-04, EXC 500 12-16, EXC 520 00-02, EXC 525 03-07, EXC 530 09-11, EXC-G 400 05-07, MXC 200 00-03, MXC 250 00-01, MXC 300 00-05, MXC 380 00-01, MXC 400 01-02, MXC 520 01-02, MXC-G 450 03-05, MXC-G 525 03-05, SMR 450 21, SX 125 00-22, SX 150 09-22, SX 200 03-04, SX 250 00-16, SX 380 00-02, SX 400 00-02, SX 450 03-06, SX 520 00-02, SX 525 03-06, SX-F 250 11-22, SX-F 350 11-22, SX-F 450 07-20, XC 125 21-22, XC 150 10-14, XC 250 06-16, XC 300 06-16, XC 450 07, XC 525 06-07, XC 525 ATV 08, XC-F 250 07-22, XC-F 350 16, XC-F 450 08-22, XC-FW 250 07-16, XC-FW 350 12-22, XCR-W 530 08, XC-W 200 08-16, XC-W 250 06-16, XC-W 300 06-16, XC-W 400 07, XC-W 450 07-16, XC-W 450 Six Days 10, XC-W 500 12-16, XC-W 530 09-11