Featuring RK's Ultra-Thin Seal technology the seal thickness of the MRU series U-rings are less than 50% of the common seal. Making it possible to design a sealed chain with the weight of a non-sealed chain. You can expect up to 4 times longer chain life than a non-sealed 420 equivalent chain with minimal to no weight increase. Weight: 0.79 KG Max CC Rating: 150cc Street Master Link Type: CLIP Chain Length: 120 Fits: Honda CRF150R SMALL WHEEL 2007-2018 CRF80F 2004-2016 Kawasaki KX65 2000-2022 KX80 1979-1987 1991-1997 Suzuki RM80 1986-1988 Yamaha YZ65 2019-2021