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 04-07-13, 12:53 PM   #1
Taze
Junior Member
Thread Starter
 
Join Date: Apr 2013
Bikes:
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
CDI Italian bike

Got a bike marked "CDI". Its a steel Italian bike with Campy engraved on the cable guides....no other markings. Now the issue. It did not come with a bottom bracket and I have no idea how to measure or order a new one. Also I have the components for Shimano 600 to put on it. Little help please!!!!!
Taze is offline   Reply With Quote
Old 04-07-13, 01:00 PM   #2
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Posts: 29,660
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 217 Post(s)
20:1 it's an Italian 36x24 BB. You can measure with 98% assurance of knowing by measuring the width. 70mm would (most likely) be Italian, 68 (most likely) would be BSC (1.370x24).

Measuring width isn't 100% reliable because there are always exceptions, so you can gain assurance by measuring the ID of the thread. If you come up with something close to just under 1-3/8" (or 35mm) it's Italian. If it's about 1mm under 1-3/8" or nearer to 34mm, then it's British.

Another way, if you have good eyes is to look at the thread direction of the right side. (crank side) Italian will have a right thread, BSC will be left hand threaded.

some combination of the 3 three methods will give you 100% assurance of what you need.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is online now   Reply With Quote
Old 04-07-13, 02:14 PM   #3
Taze
Junior Member
Thread Starter
 
Join Date: Apr 2013
Bikes:
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks so much! Looks like an inexpensive buy! I was stripping the bike of pain (really no salvaging the look) anyway I did find a serial number "M5744" got any thoughts?
Taze 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 08:21 AM.