Cogs work that work on with 3/32" or 1/8" chains
#1
Thread Starter
Senior Member
Joined: May 2007
Posts: 160
Likes: 0
From: Ohio
Bikes: Windsor Fens '07
Cogs work that work on with 3/32" or 1/8" chains
Hi there,
I mistakingly ended up buying a 1/8" freewheel from a bike store far away from home. I run a 3/32" chain and was wondering how some freewheels, such as this one: https://www.performancebike.com/shop/...slisearch=true work with both chains?
The freewheel I purchased was $12.64, is by Shimano and states 1/8x1/2 on it. It is a dark metal almost a brown color. I was hopeful it would work but when I put it on my bike the chain just slides over the teeth and wont catch very well.
I'm guessing I don't have a freewheel that works on both?
Thanks,
-Mike
I mistakingly ended up buying a 1/8" freewheel from a bike store far away from home. I run a 3/32" chain and was wondering how some freewheels, such as this one: https://www.performancebike.com/shop/...slisearch=true work with both chains?
The freewheel I purchased was $12.64, is by Shimano and states 1/8x1/2 on it. It is a dark metal almost a brown color. I was hopeful it would work but when I put it on my bike the chain just slides over the teeth and wont catch very well.
I'm guessing I don't have a freewheel that works on both?

Thanks,
-Mike
#2
probably because it is sized for 3/32 - and a 3/32 cog or freewheel will work with a 1/8 chain
the other way around will not so much
edit: what you bought was a SF-1200 (1/8 only) series, you wanted the SF-MX30 (3/32 or 1/8) series
the other way around will not so much
edit: what you bought was a SF-1200 (1/8 only) series, you wanted the SF-MX30 (3/32 or 1/8) series
#4
crotchety young dude
Joined: Jan 2005
Posts: 4,818
Likes: 0
From: SF, CA
Bikes: IRO Angus; Casati Gold Line; Redline 925; '72 Schwinn Olympic Paramount
What time did you purchase this? Can you scan the receipt?
#7
pitboss. Although I think operator just worded his answer a bit confusing and meant to say the same thing.
The chain is the key to the equation:
3/32 chain - only use 3/32 rings, cogs or freewheels.
1/8 chain - use any combo of 3/32 or 1/8 rings, cogs or freewheels
The chain is the key to the equation:
3/32 chain - only use 3/32 rings, cogs or freewheels.
1/8 chain - use any combo of 3/32 or 1/8 rings, cogs or freewheels






