1983 ZR - 550cc

5" center-to-center riser spacing

17mm x 190mm long and 19mm x 230mm long wrenches

17 800 FGT

reduces outlet smoke as well as the risk of burning out the piston

stage 8 exhaust lock nut kit for harley BS365 1983 ZR - 550ccStage 8 Exhaust Lock Nut Kit for Harley Davidson Used to secure exhaust to cylinder head without the risk of nuts loosening themselves. Special designed washers that are held in place with a special e clip, installs around the nut and will not allow the nut to rotate. This makes it impossible for the nut to loosen itself. Features: 5 16 24 threaded Kit includes 4 nuts, 4 clips and 4 special washers.