Bicycle Mechanics - Triple to Double
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.
10-25-06, 11:02 PM
I want to convert a 9speed Ultegra Triple (2004) setup with a 10speed Ultegra double setup (2006) on my road bike.
Do I need to replace the shifters? Or just the crankset, FR derailleur, RR derailleur, cassette?
Thanks in advance.
10-25-06, 11:20 PM
probably the whole deal. to go to a double, the crankset is a no brainer, and it's probably a good idea to go with the double Front Der. For 10sp, you'll need a 10sp cassette (duh) and the rear der and shifters.
10-26-06, 12:55 AM
You don't need to change as many things as Brian says. Here's the rundown:
crankset (duh) to go from triple to double
cassette (duh) to go from 9- the 10-speed
bottom bracket (probably) to get crankset lined up properly; definitely if you're switching from Octalink BB to integrated crank/BB system
right (rear) shifter will need replacing, because you'll need a 10-speed indexed gear-shifting
left (front) shifter needn't be replaced; front shifter designed for triple will work fine with two stops; however, front shifter and possibly front derailler designed for narrower 10-speed chain may matter slightly. But if you do replace the right (rear) shifter, you may as well replace the left (front) as well, because the 10-speed Shimano brifters have noticeably different ergonomics than the 9-speed.
rear derailler - no need to change this. Shimano indexed rear deraillers all have the same cable-pull ratio, excluding pre-9-speed Dura-Ace. You could use a 105 rear derailler originally shipped with a 6-speed indexed group, and it'd work for you. That said, you may want to replace the long-cage rear derailler with a short-cage rear derailler, although the only differences are looks (short-cage appears more appropriate to a double) and slight weight savings.
Much better to just switch to double-crank 9-speed system; all you'll need to replace is your crank.
What's the point of this "upgrade"?
Powered by vBulletin® Version 4.1.12 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.