Notices
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.

Help 😆

Old 03-03-20, 10:48 AM
  #1  
Lman
L-man
Thread Starter
 
Lman's Avatar
 
Join Date: Jan 2020
Location: San Antonio Texas
Posts: 125

Bikes: Co Op cty 1.3 -light touring ~1972 Peugeot OU 8 / 1992? Specialized Allez Shimankestien

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
Liked 34 Times in 23 Posts
Help 😆

My Co op cty1.3 has attachment points. Can anyone tell me the bolt thread size I would need ?
Lman is offline  
Old 03-03-20, 10:50 AM
  #2  
Andrew R Stewart 
Senior Member
 
Andrew R Stewart's Avatar
 
Join Date: Feb 2012
Location: Rochester, NY
Posts: 17,999

Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4171 Post(s)
Liked 3,791 Times in 2,270 Posts
Attachment points for what and where on the bike are they?

(My house is painted, what do you think of the color) Andy
__________________
AndrewRStewart
Andrew R Stewart is offline  
Likes For Andrew R Stewart:
Old 03-03-20, 11:09 AM
  #3  
AnkleWork
Senior Member
 
Join Date: Jan 2013
Location: Llano Estacado
Posts: 3,702

Bikes: old clunker

Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 684 Post(s)
Likes: 0
Liked 104 Times in 82 Posts
Originally Posted by Lman
My Co op cty1.3 has attachment points. Can anyone tell me the bolt thread size I would need ?
Maybe the vendor or manufacturer could tell you.
AnkleWork is offline  
Old 03-03-20, 11:35 AM
  #4  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 13,822

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 1774 Post(s)
Liked 1,230 Times in 851 Posts
Buy a 5mm bolt and see if it fits.
If it doesn't, buy larger/smaller.
Bill Kapaun is offline  
Likes For Bill Kapaun:
Old 03-03-20, 12:44 PM
  #5  
Lman
L-man
Thread Starter
 
Lman's Avatar
 
Join Date: Jan 2020
Location: San Antonio Texas
Posts: 125

Bikes: Co Op cty 1.3 -light touring ~1972 Peugeot OU 8 / 1992? Specialized Allez Shimankestien

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
Liked 34 Times in 23 Posts
Originally Posted by Andrew R Stewart
Attachment points for what and where on the bike are they?

(My house is painted, what do you think of the color) Andy
Attachment points for fenders~racks....danxs
Lman is offline  
Old 03-03-20, 01:10 PM
  #6  
Andrew R Stewart 
Senior Member
 
Andrew R Stewart's Avatar
 
Join Date: Feb 2012
Location: Rochester, NY
Posts: 17,999

Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4171 Post(s)
Liked 3,791 Times in 2,270 Posts
As Bill said. Most all the typical mounting bosses, eyes, are M5 thread (5mm diameter by .8mm per thread). If the bike has a bottle boss set with bolts they are likely M5. Some drop out eyes are M6 (6x1), was popular in the 1980s on Asian made moderate cost bikes.

BTW most fender struts have a strut mounting hole big enough for M6, with a M5 bolt the bolt head can begin to sink into the strut's hole/loop. The strut will never get really tight and tend to loosen. I suggest considering sandwiching the strut loop with a couple of washers. This will allow the bolt to be better tightened and the strut's hole/loop not open up because of the bolt head. Andy
__________________
AndrewRStewart
Andrew R Stewart is offline  
Likes For Andrew R Stewart:
Old 03-03-20, 01:34 PM
  #7  
JohnDThompson 
Old fart
 
JohnDThompson's Avatar
 
Join Date: Nov 2004
Location: Appleton WI
Posts: 24,935

Bikes: Several, mostly not name brands.

Mentioned: 153 Post(s)
Tagged: 0 Thread(s)
Quoted: 3571 Post(s)
Liked 3,366 Times in 1,915 Posts
Originally Posted by Lman
Attachment points for fenders~racks....danxs
5mm x 0.8mm is the most common for those mounts. 6mm x 1mm is also possible. Others may be unthreaded to use a bolt that passes all the way through the fitting. Older USA-built bikes may have SAE spec fittings. And older British bikes may have Whitworth spec fittings.
JohnDThompson is online now  
Likes For JohnDThompson:
Old 03-03-20, 01:59 PM
  #8  
Iride01 
I'm good to go!
 
Iride01's Avatar
 
Join Date: Jul 2017
Location: Mississippi
Posts: 14,809

Bikes: Tarmac Disc Comp Di2 - 2020

Mentioned: 50 Post(s)
Tagged: 0 Thread(s)
Quoted: 6099 Post(s)
Liked 4,730 Times in 3,260 Posts
If the old clunker is old enough, it might be ANSI and not metric.

But I guess someone already said that, but in other terms. <grin>
Iride01 is online now  
Likes For Iride01:
Old 03-03-20, 03:02 PM
  #9  
Crankycrank
Senior Member
 
Join Date: Jan 2009
Location: San Diego, CA
Posts: 3,649
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 835 Post(s)
Liked 1,053 Times in 739 Posts
Looks like this is an REI branded bike. Call up the REI you bought it from. As you can see from the other posts there are no definite answers from your limited info.
Crankycrank is offline  
Likes For Crankycrank:
Old 03-03-20, 03:04 PM
  #10  
pdlamb
Senior Member
 
Join Date: Dec 2010
Location: northern Deep South
Posts: 8,844

Bikes: Fuji Touring, Novara Randonee

Mentioned: 36 Post(s)
Tagged: 0 Thread(s)
Quoted: 2575 Post(s)
Liked 1,900 Times in 1,192 Posts
Ride the bike down to your local hardware store, and ask if you can try an M5 bolt. It'll probably fit.
pdlamb is offline  
Likes For pdlamb:
Old 03-03-20, 04:06 PM
  #11  
HillRider
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 2026 Post(s)
Likes: 0
Liked 1,095 Times in 741 Posts
Check the eyelets for paint overspray before trying the bolts (yes, M5 is most likely). I've built up several frames with racks and/or fenders and the attachment point have often required clearing before the bolts would thread in.
HillRider is offline  
Likes For HillRider:
Old 03-04-20, 09:28 AM
  #12  
cyccommute 
Mad bike riding scientist
 
cyccommute's Avatar
 
Join Date: Nov 2004
Location: Denver, CO
Posts: 27,274

Bikes: Some silver ones, a red one, a black and orange one, and a few titanium ones

Mentioned: 150 Post(s)
Tagged: 1 Thread(s)
Quoted: 6147 Post(s)
Liked 4,092 Times in 2,325 Posts
Originally Posted by JohnDThompson
5mm x 0.8mm is the most common for those mounts. 6mm x 1mm is also possible. Others may be unthreaded to use a bolt that passes all the way through the fitting. Older USA-built bikes may have SAE spec fittings. And older British bikes may have Whitworth spec fittings.
5mm x 0.8mm is the most commonly used braze-on bolts. If the braze-on is SAE is it likely a 10-32 which is close enough to a 5x0.8mm to fit. 10-32 will work in the metric fittings as well.
__________________
Stuart Black
Plan Epsilon Around Lake Michigan in the era of Covid
Old School…When It Wasn’t Ancient bikepacking
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!



cyccommute is offline  
Likes For cyccommute:

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.