Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 04-12-11, 02:34 PM   #1
Catloaf
Junior Member
Thread Starter
 
Join Date: Jun 2010
Bikes:
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
1986 Schwinn Peloton - Bottom bracket sizie help

I've searched the forums and googled for the correct sizing of a bottom bracket for above mentioned road bike. The threads on the chain side have worn lose and I need to replace it ASAP.

I've also looked at the spec sheet from the 1986 magazine (http://bikecatalogs.org/SCHWINN/1986...1986Ltwt30.JPG
but was unable to find any helpful information.

Thanks in advance for all the help I can provide pictures or anything if necessary.
Catloaf is offline   Reply With Quote
Old 04-12-11, 03:21 PM   #2
Sierra
Uff Da!
 
Join Date: Sep 2003
Bikes:
Posts: 1,038
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think spindle length depends on the crankset that you are using. Are you using the stock(original) crank that the bike came with?

As for threading, it's standard British 1.37" x 24tpi and 68mm width.
Sierra is offline   Reply With Quote
Old 04-12-11, 03:33 PM   #3
tmh657
Senior Member
 
tmh657's Avatar
 
Join Date: Aug 2008
Location: SoCal
Bikes: A few BSO's.
Posts: 2,509
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 24 Post(s)
If you can do with a new cartridge BB then..
I had the same need a few years ago for a Trek 660 that came to me as a frame set. I got a Shimano 600 double crank and went for a UN54 cartridge BB. I went to the LBS and told them the situation.
I want a 110mm and if it's wrong can I just swap it for the right length. No problem. 110 was too short, went back and got a 113mm. Easy peasy and relatively cheap. http://www.jensonusa.com/store/produ...m+Bracket.aspx
tmh657 is offline   Reply With Quote
Old 04-12-11, 03:34 PM   #4
stausty
Senior Member
 
Join Date: Dec 2008
Bikes:
Posts: 711
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
BB is standard ISO/english threading.

The length you need is the same as the old one, which is probably around 114-117 mm. Bring the old one into the shop and they can measure it for you with no problem.
stausty is offline   Reply With Quote
Old 04-12-11, 03:42 PM   #5
clubman 
Youngman Grande
 
clubman's Avatar
 
Join Date: Jan 2010
Location: Nova Scotia
Bikes: roadsters, club bikes, fixed and classic
Posts: 3,218
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 93 Post(s)
With a Sprint crankset, you want a 110mm axle.
clubman is offline   Reply With Quote
Old 04-12-11, 03:43 PM   #6
Bianchigirll 
Bianchi Goddess
 
Bianchigirll's Avatar
 
Join Date: Apr 2009
Location: Camp Hill, PA
Bikes: Too many to list here check my signature.
Posts: 22,655
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 87 Post(s)
if the threads are messed up on the fixed cup, I think you should take the bike to a shop. there could be issues with the threading inthe shell
__________________
Bianchis '87 Sport SX, '90 Proto, '90 Campione del Fausto Giamondi Specialisma Italiano Mundo, '91 Boarala 'cross, '93 Project 3, '86 Volpe, '97 Ti Megatube, , '90 something Vento 603,

Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '09 Motobecane SOLD, '?? Jane Doe (still on the drawing board), '90ish Haro Escape
Bianchigirll is online now   Reply With Quote
Old 04-12-11, 03:58 PM   #7
rat fink
Iconoclast
 
rat fink's Avatar
 
Join Date: Aug 2009
Location: California
Bikes: Colnago Super, Fuji Opus III, Specialized Rockhopper, Specialized Sirrus (road)
Posts: 3,174
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
That frame would have come with a Sugino 75 crankset and BB. I believe it actually used a Campy style taper.
rat fink is offline   Reply With Quote
Old 04-12-11, 04:41 PM   #8
miamijim
Senior Member
 
miamijim's Avatar
 
Join Date: Aug 2003
Location: Tampa, Florida
Bikes:
Posts: 13,409
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 77 Post(s)
Quote:
Originally Posted by rat fink View Post
That frame would have come with a Sugino 75 crankset and BB. I believe it actually used a Campy style taper.
+1

http://www.bikeforums.net/showthread...-related-parts....
miamijim is offline   Reply With Quote
Old 04-13-11, 09:17 PM   #9
Catloaf
Junior Member
Thread Starter
 
Join Date: Jun 2010
Bikes:
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for all the replies. I'll probably take it to the shop and have it looked at to make sure the shell threading is ok.
Catloaf 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 05:00 AM.