Cyclocross - derailleur - rear - rapid or traditional

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.



PDA
adamt
09-03-08, 02:17 PM
I was looking to throw on a mountain style rear and was looking to get an XT short cage. What is the diff between the rapid and the traditional styles? WOuld one be better than the other?

and I wanted to make sure. will the XT rear work with a 105 front? running fsa goss 48/38 cranks. 105 brifters

isotopesope
09-03-08, 03:11 PM
a rapid rise rear derailleur is at rest at the largest cog in the cassette, rather than the smallest. it would require a rapid rise specific shifter. not going to work with the 105 shifters.

you should be fine mixing a standard xt rd and the 105 fd.
EuroJosh
09-04-08, 05:47 AM
It will work fine with a brifter just backwards, assuming everything in the setup is 9 speed. The inner lever will switch to larger cogs, outer to smaller.

Saddle Up
09-04-08, 10:02 AM
Josh is correct it will just be backwards. I ride a bike with a rapid rise LX RD and Tiagra brifters. 105 brifters would work the same way.
isotopesope
09-04-08, 11:33 AM
well, it'll work, but i wouldn't say it would work fine or well. your downshifts will be limited to one at a time. bummer. however, you'd be able to jump multiple gears on the upshift if you so well choose... sort of like campy, only way crappier.