Argo Vanguard chain question?

[Mike T]

Are the front chains standard #50 double row chain? Actually the rear looks to be the same chain too. Problem is I recently replaced the front chains and the pitch looked to be a tiny bit off, which I attributed to the badly stretched old chain, now the new chain seems to be jumping the sprocket every so often. I'm wondering if the pitch is not the standard #50?

[Robio_8x8]

#50/2 roller chain

Check the offset pitch or extended pitch spec.

front chains RC (roller chain) 50-2x42P
middle chains RC 50-2x70p
Rear chain RC 50-2x96p

Check you master link/connector link for binding.
Take measurements of the old and new chain with a caliper and count the number of links

Check chain tensioner springs and slider blocks on chain take up
Look over the sprockets for abnormalities


hope this helps

http://www.6x6world.com/gallery/data/503/medium/chain_take_up.jpg

http://www.6x6world.com/gallery/data/503/medium/chain_spring2.jpg

http://www.6x6world.com/gallery/data/503/medium/chain2.jpg

[MaxRules]

The old chain may have worn the sprocket so badly that the new chain no longer matches. Worn out chains cause the sprocket teeth to look like hooks rather than triangular points.

[Mike T]

thanks for the help, i'll take a better look at the sprocket, though it looked fair at first glance. The pic showing the tensioner has me wondering if the chain is a link too short on that side. My tensioner looks like its extender much more than that one. The old chain was missing off that side when I bought it and its possible I got the length wrong.. I think i'll pull the other side and compare before I go any further.