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

Reply
 
Thread Tools Search this Thread
Old 08-23-04, 02:20 PM   #1
gravelpot
Senior Member
Thread Starter
 
Join Date: Jul 2004
Location: Austin, TX
Bikes: 2006 Specialized Allez Elite; 2003 Surly Cross-Check; 1992 Bianchi Volpe
Posts: 58
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have a 2003 Surly Cross-Check complete, which comes with a double crankset ("Cyclone, 110mm BCD", according to Surly's web site), but it looks like there are already bolt holes for adding a triple chainring on the inside.

I'm pretty sure I would have to change out the front derailleur, but is anyone familiar enough with the stock CC to advise whether this would work or not work for any other reasons? Anyone already done it?

Last edited by gravelpot; 08-23-04 at 02:36 PM.
gravelpot is offline   Reply With Quote
Old 08-23-04, 02:41 PM   #2
sydney
Senior Member
 
sydney's Avatar
 
Join Date: Jan 2004
Bikes:
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by gravelpot
I have a 2003 Surly Cross-Check complete, which comes with a double crankset ("Cyclone, 110mm BCD", according to Surly's web site), but it looks like there are already bolt holes for adding a triple chainring on the inside.

I'm pretty sure I would have to change out the front derailleur, but is anyone familiar enough with the stock CC to advise whether this would work or not work for any other reasons? Anyone already done it?
You'll need a longer BB spindle
sydney is offline   Reply With Quote
Old 08-23-04, 04:15 PM   #3
Gonzo Bob
cycles per second
 
Gonzo Bob's Avatar
 
Join Date: Oct 2003
Location: Minnesota
Bikes: Vitus Aluminum, DiamondBack Apex, Softride Powerwing 700, "Generic" Ishiwata 022, Trek OCLV 110
Posts: 1,790
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You'll probably need a BB axle that is ~5mm longer.

Since it's a triple being used as a double, you'll probably also need (5) 3mm chainring spacers to space the granny ring inboard from the crank, and the chainring bolts will have to be a little longer to get to the threads in the crank. I have a triple like this that I am currenty running as a double.

You may also have to look at getting a new rear derailer with a long cage since triples require more wrap-up capability. However, if you run a pretty tight cassette (e.g. a 12-23) and are careful about not using bad combinations, you can get by with a short cage rear derailer.
Gonzo Bob is offline   Reply With Quote
Reply


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 02:03 AM.