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shorten the chain?

Old 09-03-14, 09:27 AM
  #1  
yugdlo
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shorten the chain?

switched from a 12-30 cassette to a 11-28. Do I need to take any links out of the chain?
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Old 09-03-14, 09:30 AM
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No, the difference is insignificant.

but the old chain and new cassettes have been known to not work well together..
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Old 09-03-14, 09:31 AM
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You don't have to at all, no benefit but a few grams.
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Old 09-03-14, 09:37 AM
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Originally Posted by fietsbob View Post
No, the difference is insignificant.

but the old chain and new cassettes have been known to not work well together..
OK, thanks! The chain is new as well. I was just wondering as in respect to tension on the pulleys with a slightly smaller max cog.
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Old 09-03-14, 09:58 AM
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Remember that the tension has not changed except on the largest cog. Don't worry about it.
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There's no such thing as a routine repair.

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Last edited by cny-bikeman; 09-03-14 at 10:40 AM.
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Old 09-03-14, 10:33 AM
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You may need to readjust your "B" screw for optimum shifting with the smaller big cog.
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Old 09-03-14, 01:25 PM
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Originally Posted by dsbrantjr View Post
You may need to readjust your "B" screw for optimum shifting with the smaller big cog.
Which potentially could cause problems with the larger smallest cog.

2 fewer teeth on the largest cog would mean you'd theoretically shorten the chain by 1 link. Since you can only shorten the chain in 2 link increments, it's a 50-50 chance that you actually "couldn't" without making the chain too short.

Last edited by Bill Kapaun; 09-03-14 at 01:29 PM.
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Old 09-03-14, 01:58 PM
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Originally Posted by Bill Kapaun View Post
2 fewer teeth on the largest cog would mean you'd theoretically shorten the chain by 1 link.
Noooo... depends on some other factors, but it's basically 4 bigring teeth reduction per 1-inch link removal.
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Old 09-03-14, 02:01 PM
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Originally Posted by DiabloScott View Post
Noooo... depends on some other factors, but it's basically 4 bigring teeth reduction per 1-inch link removal.
That's really "BIG" of you to truncate my quote!
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Old 09-03-14, 03:54 PM
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Originally Posted by Bill Kapaun View Post
Which potentially could cause problems with the larger smallest cog.
Absolutely, you need to check the adjustment across the cogs; I check the adjustment while on all chainwheels as well.
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