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 07-13-09, 05:21 AM   #1
Indyv8a
Senior Member
Thread Starter
 
Indyv8a's Avatar
 
Join Date: Jun 2006
Location: Reisterstown Maryland
Bikes: Austro-Daimler Olympian Trek 800, Giant OCR C3
Posts: 427
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Old Bike, New Parts

I am considering taking my son's bike, equipped with Sora, stripping it and putting the modern components on an Austro-Daimler Steel frame as a commuter. I'm guessing that I'll run into problems like FD clamp fit/braze-on issues and bottom bracket issues.

Questions I have: How do I know what size FD?
Will the bottom bracket swap out or will I need a new one? How will I know?
Indyv8a is offline   Reply With Quote
Old 07-13-09, 05:58 AM   #2
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,776
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 36 Post(s)
Front derailleur clamps come in 1-1/8", (28.6 mm), 1-1/4" (31.8 mm) and 1-3/8" (34.9 mm) diameter so a caliper on the seat tube should be able to tell what you have. I assume the Austro-Daimler requires a 1-1/8" clamp and the newer bike has what ever it measures.

The new bike most likely has English bottom bracket threading and the cups will be engraved something like "BS 1.37x24" . Look at the A-D's current bb and see what is engraved there. If it's English you are ok but the spindle length from the new bike may not give the correct chain line.

You are also likely to have rear dropout spacing issues. The A-D, depending on it's age, could be 120 mm (5-speed), 126 mm (6/7-speed) or 130 mm(8-speed and above). The new bike will almost certainly be 130 mm.
HillRider 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 02:12 AM.