Join Date: Jun 2005
Location: South of Raleigh, North of New Hill, East of Harris Lake, NC
Bikes: Specialized Tarmac, Speialized Roubaix, Giant OCR-C, Specialized Stumpjumper FSR, Stumpjumper Comp, 88 & 92Nishiki Ariel, 01 Bianchi Campione, 87 Centurion Ironman, 92 Paramount
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Originally Posted by Delta63
That's a 9 speed.
That's not a problem. Almost all Shimano 8/9 speed derailers are interchangeable with 7 speed. The recommended long cage SORA will work for you. As an example, our 8 speed 05 Rockhopper came with an OEM Deore rear dr that says "9 speed" right on the derailer. Never had a problem with it. 8 speed and 7 speed use the same chain and all 8 speed derailers work with 7 speed. Many, but not quite all 7 speed derailers work with 8/9 speed. A few early 7 speed derailers don't have enough travel to work well with the wider 8/9 speed cassette but those are almost ancient now.
If you're really concerned about the 9 speed thing, buy a Shimano Altus derailer. It's found on many new 7 speed MTBs.
My personal recommendation would be to buy a used late model LX or Deore off ebay. I've had very good luck with those. Just stay away from any "tourney" level derailers.
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