Join Date: Jan 2005
Location: Philadelphia, PA
Bikes: Gilmour lugged steel, Bianchi Volpe, Bike Friday Pocket Rocket
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will a short cage rear derailleur prevent jumps off the front ring?
I have an 8spd rear cassette that is tight enough for a short cage rear derailleur. I currently have a long cage xt rear derailleur and no front derailleur - just a 52 tooth ring. periodically (and annoyingly) the chain will jump off the ring to the outside - usually on a downshift to the 11tooth cog. Nevermind other available fixes (i.e. adding a fd, getting a tensioner or other device specifically for this problem) I just want to know if a short cage derailleur would help. Seems like there would be less wiggle to the jiggle during shifting with a short cage der, but that is based on nothing but rank speculation on my part. I have an unused ultegra short cage derailleur sitting on my bench, but don't want to waste my time swapping if it's not gonna help.
thanks in advance for your thoughts.