1992 ZR - 550cc

25-Pack Hex Bolt Stainless 5/16-18 by Gardner Westcott

Sensational small but street legal

Open design

Excellent corrosion protection

tsubaki sigma xrg chain for yamaha BS90 1992 ZR - 550ccTsubaki Sigma XRG Chain for Yamaha The Tsubaki Sigma XRG is an X ring chain featuring a very thin 'o ring' with an X shape which offers a drag reduction on rollers and side plates. The reduction in drag is such that efficiency is almost increased to the same level as a regular roller chain, with the longevity of a regular o ring. This is the quality Tsubaki chain which combines superior strength and performance with the longevity of o ring type