Nah, im on a DID520DZ - the dude in the local shop recommended it as he uses a similar one on his post classic race bike but its got a split link clip thing in it so i've ordered a riveted link. It looks pretty skinny from above - I had a more substantial looking Tsubaki Alpha, O-ring chain on before. Aren't the X-ring ones all about handling very high power?

Whatever chain it is - its gotta have GOLD LINKS!
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After years of moaning about immigrants now i am one...