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Upgrading rear derailleur(3 posts)

Upgrading rear derailleurkermit
Jun 11, 2003 11:48 AM
I have a 2001 Kona JTS that's pretty much stock, including the sora drivetrain. The rear derailleur was recently trashed by FedEx so I'm looking for a replacement. Should I stick with the sora or should I look for an old 8sp 105/deore/lx. Upgrading to 9sp is not an option at this point. Will I notice any improvement in shifting with a better quality rear derailleur assuming everything else in the drivetrain (and shifters) is still sora? I'm running a double up front if that makes any difference.

Thanks for your time!
re: Upgrading rear derailleurSJT
Jun 11, 2003 12:06 PM
You should be able to run any *new* 105/deore/lx derailleur because it's your shifters and cassette that determine what "speed" your bike is. Go with 105 if your cassette is no bigger than 27t (which it probably is if you have a Sora on it now) or any mountain derailleur if running a mountain cassette (>28t). As for shifting performance differences, well I can't comment on that, but I can say that the quality of both the shifter and rear derilleur matter. I'd go for an upgrade so that you might have better shifting and so one part of your drivetrain will allready be upgraded if and when you decide to get new shifters, etc. Just don't spend a crazy amount of cash on the new RD...most of the extra expense when you move from say 105 to Ultegra, etc. is maybe a few grams lighter and a better finish. Good luck and tell us how things go.
re: Upgrading rear derailleuratpjunkie
Jun 11, 2003 2:05 PM
find vintage (1996-1998) XT (Short Cages if you can find them)
IMHO this is the finest rear der. Shimano ever made for durability and quality. I have a few (I still run 8 on my MTB and on 1 CX Bike)
8 is great! Search ebay, Bike swaps etc...