tsubaki sigma xrg chain for triumph 2OM 25-pack Allen Bolt Chrome 5/16-18

25-pack Allen Bolt Chrome 5/16-18 by Gardner Westcott

Note 3: Compatible with S&S 558678 58mm throttle body

1981 GS650EX/GLX

Developed and tested by Harley-Davidson engineers

a perfect match for many custom bikes

tsubaki sigma xrg chain for triumph 2OM 25-pack Allen Bolt Chrome 5/16-18Tsubaki Sigma XRG Chain for Triumph 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