AS3 Performance Chain Guide for Kawasaki KX 250, KX 250 X, KX 450, KX 450 X. AS3 PERFORMANCE CHAIN GUIDE BLACK to fit KAWASAKI KXF 250 09-20 KX-F 450 09-18. 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.
