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Old 11-20-07, 06:42 PM   #1
daroemer
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Shifter compatibility questions

I'm transforming a hybrid into a cross bike, and my next step is the bars. Before I can take it to my LBS for drops, I need to get some shifters, which I simply can't afford new (wish I could). The bike I have is a TREK 7.5 FX, which has Shimano components. It is a Triple front, 9 rear setup, and I see all kinds of options on eBay for slightly used and new shifters, but I want to make sure I get the best I can get, that will be compatible, for the best price.

Can someone help me understand the difference between:

Shimano 105 5500
Shimano 105 5510
Shimano 105 5600

Is one model better, or just a newer series? Better materials, or more durable? I may have even seen a 5501? Which should I get if I have the option? Are all compatible if I see one that is just way cheaper?

What about Dura Ace and "FlightDeck" compatible?

Do I have to get a 9 speed shifter, or will a 10 speed shifter work with a 9 speed rear cassette?

I assume I MUST have a Triple front shifter.

THANKS!!
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Old 11-20-07, 09:38 PM   #2
Al1943
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If you run 9-speed, get the 9-speed shifters. Shimano 105 is 55xx, any will work, double or trouble. Shimano 10-speed is 56xx, any will work with 10-speed cassette, and 10-speed chain. Flight Deck shifters have buttons and wires to work with their proprietary computer with gear combination display. Dura-Ace components are the top-of-the-line Shimano. D-A shifters are double/triple specific, the double shifters won't work with a triple.

Al
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Old 11-20-07, 10:28 PM   #3
nitropowered
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the 55xx series is 9 speed and are not double/triple specific. the 56xx series is 10 speed and not double/tripled specific.

Yes you can get a 10 speed shifter and run it with a 9 speed cassette using the alternate cable anchor.
http://www.sheldonbrown.com/derailer...html#alternate
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