Bicycle Mechanics - Shimano rear derailleur upgrade?

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chaserxyz
09-02-10, 08:39 PM
I have a Schwinn mountain bike and the Shimano rear derailleur broke. Its a Shimano Tourney with SIS Index, whatever that means, and my shifter is a Shimano revoshift. I'd like to upgrade the rear derailleur, but dont know how to tell if some of the better ones are compatible. Can someone help please?

LesterOfPuppets
09-02-10, 08:54 PM
Most Shimano derailers that aren't Rapid Rise will work.
LarDasse74
09-02-10, 09:19 PM
Rapid rise should also work fine, no? Or do the cogs need to be of the heavily ramped and profiled variety?

THe best value for you money is going to be an Alivio or similar. Acera is about the cheapest I would consider buying, and unless the bike is fancy, Deore works as well as the higher end ones when properly set up.

LesterOfPuppets
09-02-10, 09:26 PM
Well, I'm not sure. If anything, you'd have to get used to twisting the shifter the opposite way than you're used to.
LarDasse74
09-02-10, 09:29 PM
But it would still work ... just work slightly differently. In my opinion, after you figure it out, Rapidrise has advantages.
furballi
09-02-10, 11:29 PM
Check out the Microshift model 56 sold under the Nashbar label. I paid about $23 after 25% off coupon. Can easily handle 32T cog. Quality is between Shimano 105 and Ultegra. It's rated for 10 speed operation. All metal construction.

http://www.nashbar.com/bikes/Product_10053_10052_169985_-1_201521_10000_200381

http://www.nashbar.com/bikes/Product_10053_10052_501278_-1_201664_10000_200381