Chain width compatabilities: which work, which don't
There seems to be ALOT of questions lately about modernizing or retrofitting old bikes to new parts. Invariably, chain width and cogs spacing issues come up.
Older vintage 5 and 6 speeds chains are the same. When 7 speed first came out, those chains were just a scoosh thinner. But they'd still work on the older models, and older chains would usually work with the new freewheels. NOTE: This is for FRICTION shifting only.
These older chains will typically NOT work with the newer, narrower cassette cogs. To get more gear options (or index shifting capability), you'll have to upgrade everything.
For a more thorough treatment (and alot of stats and figures), visit Sheldon Browns website.
Last edited by bikemeister; 08-06-08 at 12:06 PM.
Reason: new info, content