To 3/32nd, or to not 3/32nd?

Rat Rod Bikes Bicycle Forum

Help Support Rat Rod Bikes Bicycle Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Joined
Jun 11, 2012
Messages
5,944
Reaction score
10,574
Location
Visalia, CA
Rating - 100%
63   0   0
As I'm mulling over my next build, I have a sprocket dilemma. The bike was using a 1/8" chain for a 3 speed. I'm switching to a 5 speed. I might use the original sprocket. In the past, I've milled the teeth thinner to accommodate the 3/32 chain so I can use a freewheel and derailleur. But now I'm wondering if I really need to do that? The difference in width between a 1/8" chain and a 3/32" chain is... uhhhh... (*tries to math...) ... uhhhh... a small distance. But what NEEDS the thinner chain? I'm thinking the 1/8" chain has the room to fit the cogs in the freewheel and will change between them fine. I'm thinking the jockey cage is where the problem is. So... can I just ad a small washer spacer in the cage to open up the width?

Has anyone tried that?
 
I think the issue is the outer width of the chain. My understanding is 1/8 and 3/32 is measuring the inner width. (The difference of inner width is 1/32)

The difference in the outer width may be more significant. To me the question is whether the outer width will fit between the cogs of the freewheel.

I am all for experimenting. Give it a shot and let us know. My guess is you will run into shifting issues.

I’ve run into the same dilemma and have always replaced the front chainring.
 

Latest posts

Back
Top