Replacing a bike chain..
12-02-08, 11:39 AM
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Replacing a bike chain..
So im turning my geared bike into a single speed bike, so far so good. Ran into a problem whilst fitting the chain back on. Because ive put a BMX cog on the back, the chain no longer fits. So i gather i need to buy a new chain. My question is 'will i need to replace my front cog aswell ?', because if the chain wont fit on the back cog i assume it wont fit on the front.
12-02-08, 11:50 AM
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sounds like you got a 1/8" wide cog. cogs and chainrings come in 1/8 and a narrower 3/32. you can run a 1/8 chain on your existing 1/8 cog and 3/32 chainring but its not optimal.
12-02-08, 12:38 PM
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I think brooklyn_bike is right on here. singlespeed freewheels are available with 3/32" or 1/8" teeth. 3/32" is the norm for geared bikes, singlespeed and fixed-gear bikes can be found in both varieties.
My fixed-gear road bike and singlespeed mountain bike both have 1/8" chains paired with a 3/32" gear (the fixed-gear has a 1/8" rear cog and the mtb has a 1/8" chainring) and the wider chain works fine with the mismatched narrower gear on each bike.
But I agree with brooklyn_bike that you may as well get all 3/32" stuff... get a different freewheel for your bike and make sure it's 3/32" wide. Otherwise you'd have to buy a wider chain anyway.
My fixed-gear road bike and singlespeed mountain bike both have 1/8" chains paired with a 3/32" gear (the fixed-gear has a 1/8" rear cog and the mtb has a 1/8" chainring) and the wider chain works fine with the mismatched narrower gear on each bike.
But I agree with brooklyn_bike that you may as well get all 3/32" stuff... get a different freewheel for your bike and make sure it's 3/32" wide. Otherwise you'd have to buy a wider chain anyway.
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"c" is not a unit that measures tire width
"c" is not a unit that measures tire width
12-04-08, 03:49 AM
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12-04-08, 03:52 AM
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I think brooklyn_bike is right on here. singlespeed freewheels are available with 3/32" or 1/8" teeth. 3/32" is the norm for geared bikes, singlespeed and fixed-gear bikes can be found in both varieties.
My fixed-gear road bike and singlespeed mountain bike both have 1/8" chains paired with a 3/32" gear (the fixed-gear has a 1/8" rear cog and the mtb has a 1/8" chainring) and the wider chain works fine with the mismatched narrower gear on each bike.
But I agree with brooklyn_bike that you may as well get all 3/32" stuff... get a different freewheel for your bike and make sure it's 3/32" wide. Otherwise you'd have to buy a wider chain anyway.
My fixed-gear road bike and singlespeed mountain bike both have 1/8" chains paired with a 3/32" gear (the fixed-gear has a 1/8" rear cog and the mtb has a 1/8" chainring) and the wider chain works fine with the mismatched narrower gear on each bike.
But I agree with brooklyn_bike that you may as well get all 3/32" stuff... get a different freewheel for your bike and make sure it's 3/32" wide. Otherwise you'd have to buy a wider chain anyway.
12-04-08, 04:20 AM
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12-04-08, 04:22 AM
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It won't fall apart every 10 minutes - it just won't fit perfectly, probably be a little louder, and won't last as long.
12-04-08, 05:05 AM
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More slop and side-to-side play. It's simply too wide. All components should be in either 3/32" or 1/8" inch. Should be. Up to you.
