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 10-29-07, 06:18 PM   #1
Jaguar27
Senior Member
Thread Starter
 
Join Date: Oct 2005
Bikes:
Posts: 548
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Cannondale Si chainring compatibility...

Hey Guys I have a quick question......
Are the Cannondale Si chainrings compatible with both Campy and shimano?

Thanks in advance.
Jaguar27 is offline   Reply With Quote
Old 10-29-07, 07:03 PM   #2
Waldo
Zippy Engineer
 
Waldo's Avatar
 
Join Date: Jan 2003
Location: IN
Bikes: Bianchi 928, Bianchi Pista Concept 2004, Surly Steamroller, 1998 Schwinn Factory Team Homegrown, 1999 Schwinn Homegrown Factory, 2000 Schwinn Panther, Niner EMD9
Posts: 1,801
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yes.
Waldo is offline   Reply With Quote
Old 10-29-07, 07:03 PM   #3
I_bRAD
Call me The Breeze
 
I_bRAD's Avatar
 
Join Date: Aug 2006
Location: Corbyville Ontario
Bikes: 2004 Litespeed Siena, 1996 Litespeed Obed, 1992 Miele (unknown model), 1982 Meile Uno LS.
Posts: 3,699
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You have to make sure you've got the same bolt pattern, and if you're changing the number of teeth you need to make sure your derailleurs and chainstays are compatible.

The bolt pattern is determined by the crank you're using.
I_bRAD is offline   Reply With Quote
Old 10-29-07, 07:05 PM   #4
Al1943
Senior Member
 
Join Date: Feb 2005
Location: Oklahoma
Bikes: Trek 5500, Colnago C-50
Posts: 9,433
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Probably but it's not quite that easy. First, Campy and Shimano what? If you're not changing number of speeds, and if your crankset is a double, and if you're not mixing chainrings, then you can probably go either way. If any one or more of these variables don't match you may have a problem, either a small problem or a big problem. You really need to offer more information.

Al
Al1943 is offline   Reply With Quote
Old 10-29-07, 07:12 PM   #5
Waldo
Zippy Engineer
 
Waldo's Avatar
 
Join Date: Jan 2003
Location: IN
Bikes: Bianchi 928, Bianchi Pista Concept 2004, Surly Steamroller, 1998 Schwinn Factory Team Homegrown, 1999 Schwinn Homegrown Factory, 2000 Schwinn Panther, Niner EMD9
Posts: 1,801
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Si cranksets are double-only.
I suppose I should expand upon my earlier answer...if the question pertains to specifically whether the chainrings are optimized for shifting with either Campy or Shimano (or SRAM, for that matter), the answer is that there is no issue there. As far as the cranksets go, the Si cranksets are set up with a 43.5 mm chainline which should work fine with either system. Their chainring designer said the crankset system works well with either of the two major players, though he was partial to Campy as a personal preference alone. Bolt circles are 130 mm for standard chainrings or 110 for their compact chainrings, each on a five bolt circle. This, of course, excludes the Zipp crankset we are making for them, which is on a 4-bolt 110 mm BCD and will work well for any of the major players in the drivetrain market.
Waldo is offline   Reply With Quote
Old 10-29-07, 11:24 PM   #6
Jaguar27
Senior Member
Thread Starter
 
Join Date: Oct 2005
Bikes:
Posts: 548
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hello Guys....thanks for all the replies, I really appreciate it....
I'm sorry I wasn't more specific with my question, so here's the scoop...

I'm currently riding a Six13 with an Si Crankset, it has a Campy Record Gruppo...

I want to upgrade to a System Six frame and swap all the parts to the new Frame...

A Friend of mine is riding an Ultegra equiped Bike and wants to buy my Six13 frame, so i guess the real question is, will he beable to swap his Ultegra Gruppo including front and rear D/A's etc to my old frame without having to do anything to the Si Chainrings?
His bike is a triple, so he may need a new front D/A and front shifter, right?

After reading the replies I'm 99% sure the Si Chainrings are campy/shimano compatible but I just want to make sure to save us both a headache....

Sorry I wasn't clear in my first post.
Jaguar27 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 12:27 PM.