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xtr m950, m951, m952, m953

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xtr m950, m951, m952, m953

Old 09-22-08, 04:02 PM
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dl33
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xtr m950, m951, m952, m953

Hi,

I'm doing a retro build with xtr parts from the late '90s. What are the difference between these the shifters and deraileurs for models m950, m951, m952, m953?

There was a change from 8 to 9 speeds, rapid rise and top/bottom swing and top/bottom pull. So which model designation had which feature?

Thanks for any help.

regards,
dl
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Old 09-22-08, 05:28 PM
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mike_s
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rd-m950 and rd-m952 are bottom normal (not rapid rise). rd-m951 and rd-m953 are rapid rise.

fd-m950 is top swing, bottom pull, 8 speed. fd-m952 is top swing, bottom pull, 9 speed. I think the fd-m953 is bottom swing, bottom pull, 9 speed.

I don't know about the others.
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Old 09-22-08, 07:38 PM
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dl33
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Are there any difference on the shifters for normal vs rapid rise? For ex. will a m951 shifter work with m952 rear deraileur, will the thumb still pull the rd to a lower (bigger cog) gear and the index trigger drop the rd to a higher (smaller cog) gear?
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Old 09-23-08, 06:08 AM
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mike_s
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With rapid rise things are reversed, because pulling the cable moves the der in the opposite direction of a normal der.
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