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Precision J-form threads for optimum engagement
1974-1975 Honda CB550K
2016-2022 Yamaha YFM90 Raptor
No gear change or modifications required like other aftermarket chains
2006-2016 Kawasaki KX450F
Renthal 437U-520-37GBSI REN Rear Sprockets tools-safety-wire Precision J-form threads for optimumRenthal 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
US$ 58.96
US$ 58.96
US$ 58.96
US$ 62.39
US$ 58.96
US$ 62.39
US$ 62.39
