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Old 02-20-06, 06:42 PM   #1
bigS
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8 speed with 7 speed derailleur

Any problems using an 8 speed drive train with a 7 speed rear derailleur?
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Old 02-20-06, 06:48 PM   #2
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Any problems using an 8 speed drive train with a 7 speed rear derailleur?
Nope - Shimano SIS 6-8 don't care what they are being pulled by.
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Old 02-20-06, 07:27 PM   #3
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Any problems using an 8 speed drive train with a 7 speed rear derailleur?
No problems unless you're mixing Dura-Ace with non-Dura-Ace.
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Old 02-20-06, 10:03 PM   #4
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No problems unless you're mixing Dura-Ace with non-Dura-Ace.
An even better answer.
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Old 02-21-06, 12:08 AM   #5
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Don't mix Shimano with SRAM?
If the cluster is the same range I'd think so.
My Deore was designed to do both and I went 2T larger than max teeth low cog.
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Old 02-21-06, 07:10 AM   #6
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You can mix any SRAM cassette with Shimano drivetrain. Some SRAM deraillers are designed specially to work with special SRAM shifters. (SRAM also makes Shimano-compatible deraillers and shifters) However, there's no difference in the cassettes, and Shimano cassettes will work fine with SRAM's special shifters and deraillers, too.
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Old 02-21-06, 01:59 PM   #7
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Originally Posted by timcupery
Some SRAM deraillers are designed specially to work with special SRAM shifters.
1:1 actuation ratio?
Shimano is 2:1?
I thought Shimano shifters didn't pull enough cable to move SRAM derailers.
Not something I've really looked into, I am likely to change the shifter and derailer to SRAM with the next cluster change rather than mix.
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Old 02-21-06, 02:05 PM   #8
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Jeff: some SRAM deraillers are Shimano compatible. Not the 1:1 deraillers.
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