Renthal 184U-520-39P-HA REN Rear Sprockets chemical-chain-lube Original equipment on 2019 BMW

Original equipment on 2019 BMW R1250 GS motorcycles

including aluminum

1984 Suzuki RM500

and cams up to

Renthal 184U-520-39P-HA REN Rear Sprockets chemical-chain-lube Original equipment on 2019 BMWRenthal UltraLight Rear Chainwheels are CNC machined from 7075 T6 aluminum to extremely tight tolerances, 66% lighter than steel. Computer engineered and tested to ensure a precise fitment, concentricity and load dispersion with tooth profiling to provide maximum power transfer. A combination of high strength base material, cutting edge manufacturing methods and exceptional hardwearing surface treatments its clear to see why Renthal's light weight all