Best Chain for 73 Norton Interstate 850

[Pete Goat]

Can anyone tell me a quality drive chain for my 1973 Norton commando interstate 850 thanks, ive been told there is not much clearance around the front sprocket.

[iansoady]

There's no room for an O- or X- ring - in fact an ordinary heavy duty 5/8 x 3/8 chain will show witness marks on the rear of the primary chaincase.

So you're stuck with regular lubrication. Any of the well known makes - DID etc - will be fine.

[L.A.B.]

The best non-O- or X-ring chain that will fit without any width problems is the iwis M106SL.

Available from 'Andy the chain man'.
http://www.the-chain-man.co.uk/index.html

[iansoady]

Andy's excellent and gives good advice.