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gurp13 · 08-16-2006, 03:57 PM

My commuter bike is 21 speed. Three chainrings and seven sprockets. So, I assume that means I need a 7 speed chain. But, all I see are 8, 9, and 10 speed chains. What do I do? Will the 8 speed chain work?

P-Funk · 08-16-2006, 04:21 PM

An 8-speed chain should be fine, I'd think. The only difference would be the width of the chain; an 8-speed chain being narrower than a 7-speed.

Pho'dUp · 08-16-2006, 07:37 PM

Quote:

Originally Posted by P-Funk

An 8-speed chain should be fine, I'd think. The only difference would be the width of the chain; an 8-speed chain being narrower than a 7-speed.

8-speed chain should be fine. 7 and 8 are interchangeable. Cheap too.

Jordansrealm · 08-16-2006, 08:33 PM

8 should be grand

Innes · 08-16-2006, 09:22 PM

I believe 7 and 8 speed chains are the exact same. They didn't need to change the width of the chain until they went to the 9 cog cassette.

gurp13 · 08-17-2006, 08:55 AM

That sounds pretty unanimous. Thanks, you socaltrailriders, you!

dirttorpeedo · 08-17-2006, 11:41 AM

yes little one,7/8 is the same shane, if you look some say 7/8 speed on the box.but then you shood have known!happy shopping come back soon.

08-16-2006, 03:57 PM	#1 (permalink)
gurp13 SolarFederationMember	chain size My commuter bike is 21 speed. Three chainrings and seven sprockets. So, I assume that means I need a 7 speed chain. But, all I see are 8, 9, and 10 speed chains. What do I do? Will the 8 speed chain work? __________________ I may be a loser, but I'm not a quitter.

08-16-2006, 08:33 PM	#4 (permalink)
Jordansrealm www.lostmanifesto.com	8 should be grand __________________ "Gene, let me hold on to your nuts for you" - CC "You think you're smart cuz you know words" - Benchwarmers

08-16-2006, 09:22 PM	#5 (permalink)
Innes Senior Member	I believe 7 and 8 speed chains are the exact same. They didn't need to change the width of the chain until they went to the 9 cog cassette. __________________ "Nothing compares to the simple pleasures of a bike ride." - J.F.K

08-17-2006, 08:55 AM	#6 (permalink)
gurp13 SolarFederationMember	That sounds pretty unanimous. Thanks, you socaltrailriders, you! __________________ I may be a loser, but I'm not a quitter.

08-17-2006, 11:41 AM	#7 (permalink)
dirttorpeedo drive monkey, drive!	yes little one,7/8 is the same shane, if you look some say 7/8 speed on the box.but then you shood have known!happy shopping come back soon. __________________ professionally speaking of course!

08-16-2006, 04:21 PM	#2 (permalink)
P-Funk Senior Member	An 8-speed chain should be fine, I'd think. The only difference would be the width of the chain; an 8-speed chain being narrower than a 7-speed.

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