Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  

Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Thread Tools Search this Thread
Old 08-30-12, 03:30 PM   #1
Junior Member
Thread Starter
Join Date: Apr 2006
Posts: 23
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
conflicting reports on 10 speed derailleur - set me straight.

I just ordered a 9 speed shimano compatible brake lever shifter set and the 10 speed Shimanho 105 rear derailleur thinking I could adjust the derailleur to fit pretty much any gearing as long as the shifter and gears match. But I have been reading that one cannot use the 10 speed derailleurs with the normal 7/8/9 speed shifters and cassettes. I have read opinions BOTH ways, that one CAN and one CANNOT. Which is it? Please remove this confusion from my brain....

mbtigger is offline   Reply With Quote
Old 08-30-12, 03:40 PM   #2
Senior Member
Join Date: Sep 2004
Location: boston, ma
Posts: 2,869
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
anything marked dynasys must be used with dyna sys parts. your plan should work fine
reptilezs is offline   Reply With Quote
Old 08-30-12, 03:49 PM   #3
Senior Member
Join Date: May 2010
Location: Madison, WI
Posts: 1,099
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
All non dynasys (Which is a mountain bike thing) SIS RDs should be compatible, at least as far as travel goes. I have had bad luck using some pre-SIS8 RDs, but that could be due to other factors.

A 105 RD should work fine with 9 speed shifters, and many bikes were sold with 9 speed Tiagra and 105 RDs.

It is possible there some some variation in cage width, since 10 speed chains are narrower, but it shouldn't cause issues with 9 and 10 speed components. 8 and 10 maybe, but I'm not sure.
Nerull is offline   Reply With Quote
Old 08-30-12, 04:37 PM   #4
Ride, Wrench, Swap, Race
dddd's Avatar
Join Date: Jan 2010
Location: Northern California
Bikes: Cheltenham-Pederson racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
Posts: 5,259
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 69 Post(s)
The 10s 105 derailer will work fine with 9s chain and shifters.
dddd is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 01:33 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    get answers from real people!
Click to start entering your question.