The 2-piece Chain Guide Block by Acerbis replaces the stock/OEM drivetrain component on your MX / offroad motorcycle.

Greater impact resistance thanks to the high-strength plastic material used

The controlled elasticity structure of the chain guide absorbs shocks and minimizes damage to the chain and sprocket

The chain guide unit is made of 2 pieces: the guide/block body and the bottom plate/slide. The plate is replaceable once worn, and allows you to not have to disassemble the chain when replacing the plate or the guide unit itself

Replacement parts available
17949 = Honda CRF 250 R 2007-24; CRF 250 RX 2019-24; CRF 250 X 2007-18; CRF 300 RX 2019-24; CRF 450 R 2007-24; CRF 450 RX 2017-24; CRF 450 X 2007-18
24815 = Honda CRF 250 L 2021-23; CRF 300 L 2021-23; CRF 300 RALLY 2021-23
17950 = Kawasaki KX 250 4T 2020-24; KX 250 F 2009-19; KX 250 X 2021-24; KX 450 2020-24; KX 450 F 2009-19; KX 450 X 2021-24
16451 = KTM / Gas Gas / Husqvarna / Sherco fits multiple models
25962 = KTM / Gas Gas / Husqvarna fits multiple models
17951 = Suzuki DRZ 400 E 2000-23; DRZ 400 S 2000-23; RM 125 2007-08; RM 250 2007-08; RMZ 250 2008-18; RMZ 450 2005-17; RMZX 2010-17
23072 = Suzuki RMZ 250 2019-24; RMZ 450 2018-24
17952 = Yamaha WR 250 F 2003-24; WR 450 F 2003-23; YZ 125 2005-24; YZ 250 2005-24; YZ 250 F 2003-23; YZ 250 FX 2019-24; YZ 450 F 2003-22; YZ 450 FX 2019-22
24657 = Yamaha Tenere 700 T7 2019-23; T7 Explore 2023; T7 Extreme 2023-24; T7 Rally 2020-23; T7 World Raid 2022-23
25764 = Yamaha YZ 250 F 2024; YZ 450 F 2023-24; YZ 450 FX 2023-24