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chain/cassette aggravation question

Old 07-24-14, 07:30 PM
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chain/cassette aggravation question

I just purchased a sram pg950 11x28 cassette and a kmc x8.pp 18speed compatible 3/32x1/2 , chain.
I installed both and the chain is sticking between the high gear cogs in smallest three cogs where it comes off the top of the cogs
The chain kmc does same thing on original 11x25 cassette which originally called for same spec 11/32x1/2 chain,
Unfortunately the orig chain is to short for 11x28 sram cassette.
Would a little sticking between high gear cogs eventually wear to non sticking and or is that little sticking normal in a new chain?
It shifts, but drags due to chain grab between cogs.

For the day after tomorrow long hilly ride I'm back to original chain and cassette but I'd like to keep and use the kmc and sram if feasible.

Any input appreciated.
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Old 07-24-14, 07:47 PM
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could be 8-speed chain and 9-speed cassette incompatibility. i think i remember something about different cog spacing on 8 vs 9. maybe not. you might try wiki.
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Old 07-24-14, 08:25 PM
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Looks like I shoulda ordered 1/2 x 11/128" kmc x9.99 instead of going by original bike specs chain size especially since I knew specs for bike on bike pedia were not a hundred percent correct for bike.

I know I read it was 7,8,9 compatible (18/21/24) on packaging, friggin aggravating, was depending on 18 tooth cassette for 100k on Saturday.

Amazon says that chain (x9.99) is ordered with that cassette, shoulda trusted their marketing instead.
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Old 07-24-14, 08:29 PM
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i feel for ya, if that makes any difference. bike parts are real mess of incompatibilities...
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Old 07-24-14, 08:29 PM
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The metric 3 times tables we learned in the colonies would indicate that 18/21/24 relates to 6/7/8 and not 7/8/9 but the imperial times tables may be different.

- joel
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Old 07-24-14, 08:48 PM
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Originally Posted by tomacropod
The metric 3 times tables we learned in the colonies would indicate that 18/21/24 relates to 6/7/8 and not 7/8/9 but the imperial times tables may be different.

- joel
Metric never took a hold in my brain in 6th grade, much less 45 yrs later...

Course I coulda just thought 15$ looked better than 25$ , May just hit lbs tomorrow and as what they have and cost or just suffer the hills and return the wrong chain later.
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Old 07-24-14, 08:50 PM
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Originally Posted by hueyhoolihan
i feel for ya, if that makes any difference. bike parts are real mess of incompatibilities...
So I'm learning... guess that is what I get for last minute preparations. Suffer the hills
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Old 07-24-14, 08:53 PM
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Thanks one and all...
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Old 07-25-14, 06:08 PM
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Originally Posted by 1986raleigh
So I'm learning... guess that is what I get for last minute preparations. Suffer the hills
No suffer the hills, LBS to rescue sram chain installed as is 12x18 sram cassette, smooth as silk.

Keeping the kmc chain for Raleigh.
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