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 09-19-06, 08:11 PM   #1
JNG330
Member
Thread Starter
 
JNG330's Avatar
 
Join Date: Aug 2006
Location: New York
Bikes: Cannondale M300
Posts: 39
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
bottom bracket question

Hi, i just bought a used Race Face Next LP Crankset on Ebay a couple of days ago, and the seller told me to get a 113mm bottom bracket to go with the crankset. I then bought a 113mm bb from JensonUSA. When i finally got my bottom bracket in mail today i found out they had ship me the wrong bb. (from a Shimano un53 to un73) It is a a better model , but it is only a 110mm bb. Would that be a big problem for my crankset? or should i just put it in anyway because it is only a 3mm difference. thank you very much in advance for anyone's help.
JNG330 is offline   Reply With Quote
Old 09-19-06, 11:11 PM   #2
Flanderflop
weirdo
 
Join Date: Jan 2006
Location: Louisville, KY
Bikes: Viner Pro Carbon,Fat Chance Yo-Eddie, Specialized S-Works (epic), Voodoo Rada, Trek 830 setup SS for commuting.
Posts: 97
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The 110/113 measurement is the spindle length. The spindle length depends not only on the crank, but on the fram you have. The 110 length will sit your crank 1.5mm closer to your frame than the 113. If the crank can handle this without rubbing the frame, then the next thing you need to worry about is if the change will throw your chainline off. Having your cranks 1.5 mm closer to the frame may cause some problems with the way the bike shifts. I know 1.5mm doesn't sound like a lot, but if you know you need a 113, I would use a 113 not a 110. My only question is how your e-bayer knew that you needed the 113.
Flanderflop is offline   Reply With Quote
Old 09-19-06, 11:50 PM   #3
operator
cab horn
 
Join Date: Jun 2004
Location: Toronto
Bikes: 1987 Bianchi Campione
Posts: 28,306
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Because the seller sold him the crankset...
operator is offline   Reply With Quote
Old 09-20-06, 01:29 AM   #4
sivat
Geek Extraordinaire
 
sivat's Avatar
 
Join Date: Feb 2006
Location: Long Beach, CA
Bikes: Bianchi Advantage Fixed Conversion; Specialized Stumpjumper FS Hardtail
Posts: 1,769
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Have you gotten the crankset yet? From the pictures i've seen, it looks like it needs an ISIS bottom bracket. If that is the case, you won't be able to use the shimano. I think 113 is the standard size for ISIS.
__________________
I'd rather have a bottle in front of me than a frontal lobotomy.

Sintesi Conversion Serotta Track
sivat is offline   Reply With Quote
Old 09-20-06, 05:26 AM   #5
TallRider
me have long head tube
 
TallRider's Avatar
 
Join Date: Oct 2005
Location: Chapel Hill, NC
Bikes:
Posts: 4,106
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yup, I'd guess that the crankset takes an ISIS bottom bracket, for which the only available spindle lengths are 108, 113 and 118mm. Sounds like you got a square-taper BB.

If indeed your crank takes a square-taper, Shimano's 113mm bottom bracket spindles are nearly symmetrical (both sides stick out equally far from a 68mm bottom bracket shell) whereas the 110mm is asymmetrical, with the non-drive-side spindle 3mm longer than the drive-side.
TallRider is offline   Reply With Quote
Old 01-30-08, 12:31 PM   #6
Mhendricks
Senior Member
 
Mhendricks's Avatar
 
Join Date: Nov 2004
Location: San Jose, ca.
Bikes: 2006 Orbea Volata, 84 Trek 760, 83 Trek 720,
Posts: 1,326
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Flanderflop View Post
The 110/113 measurement is the spindle length. The spindle length depends not only on the crank, but on the fram you have. The 110 length will sit your crank 1.5mm closer to your frame than the 113. If the crank can handle this without rubbing the frame, then the next thing you need to worry about is if the change will throw your chainline off. Having your cranks 1.5 mm closer to the frame may cause some problems with the way the bike shifts. I know 1.5mm doesn't sound like a lot, but if you know you need a 113, I would use a 113 not a 110. My only question is how your e-bayer knew that you needed the 113.
Right now I have a similar problem. I took a crank and bottom bracket from an old Fuji to put on a Nishiki Mixte for a friend. Turns out that when I tried to put on the crank it was already touching the frame on the drive side before I tightened it down. Both are 68mm shell's so I knew that wasn't it. I believe that the spindle is too short (3L on spindle 115mm) on the drive side. So I'm thinking that I have to go to a longer spindle to correct the problem. BTW the crank is a SR Apex using a Sugino BB. Any comments?
__________________
They call me "Mr. Mixte"
Mhendricks 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 01:28 AM.