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Old 02-16-08, 08:25 AM   #1
Tyrell
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8/9 speed triple crank with 7-speed cassette?

My '92 Trek 1420 came as a 7-speed triple and friction shift front down tube der. The chain rings and cassette are looking like they need replacing and I'm having a hard time sourcing a 7-speed triple crank. I have found some that indicate that they are 8/9-speed compatible though. Will they work ok with a 7-speed cassette? I'm not sure what the difference is regarding spacing between the chain rings but I assume the chainline should be the same. Also, what chain would I need to use? Thanks in advance for the advice!
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Old 02-16-08, 08:35 AM   #2
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No problem. Speeds don't mean much with chainrings.
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Old 02-16-08, 08:38 AM   #3
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Yep, I was actually just browsing at Sheldon's site (God Bless him) and it appears that I should be ok. Hurray!
http://www.sheldonbrown.com/speeds.html
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