AS3 Performance Chain Guide for Suzuki RM 125, RM 250, RMZ 250, RMZ 450, DRZ 400. AS3 Performance chain guides have a CNC machined aluminium mounting bracket that provides a firm fixing to the swing arm and the lower part is made from strong, hard wearing plastic which will flex on impact but not bend, giving your rear sprocket maximum protection while keeping the chain running in line.
