upgrading old road bike, fork/headset and BB
#1
Senior Member
Thread Starter
upgrading old road bike, fork/headset and BB
I want to convert a threaded to a threadless fork system. Is it just buy all 1-1/8" parts?
Can I put a mega exo or shimano exo on a older frame? Just need to get the width right?
thanks.
Can I put a mega exo or shimano exo on a older frame? Just need to get the width right?
thanks.
#2
Senior Member
For the threadless fork conversion you'll need - new fork, headset and stem.
As far as the BB goes, are you using the same cranks? Is the crank square taper ( you stated it's for an older frame )?
As far as the BB goes, are you using the same cranks? Is the crank square taper ( you stated it's for an older frame )?
#3
Senior Member
Thread Starter
yes, 1-1/8th right?
NO I already know the cranks have to match the new BB.
NO I already know the cranks have to match the new BB.
#4
Collector of Useless Info
Join Date: Aug 2009
Posts: 1,404
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
If the bike is pretty old, like before the early '90s, then you will want 1" fork/headset/spacers/stem. The best thing to do is to measure the steerer tube outer diameter, but if you have a quill stem now, you'll want 1". I'd stay with threaded, personally. Nothing wrong with threaded headset/forks/stems, and it looks more period correct. But there are a couple of different standards for 1" threaded headset- ISO, JIS and French, each with slightly different parameters.
As far as the bottom bracket goes, measure the shell width- if it's 68 mm and the bike isn't French then you're golden- use British standard. Otherwise, there are Swiss, French, Italian, Raleigh Proprietary, Ashtabula, Thomson, all kinds of other standards that each require a different solution.
I guess the question is: What year and brand of bike is it?
As far as the bottom bracket goes, measure the shell width- if it's 68 mm and the bike isn't French then you're golden- use British standard. Otherwise, there are Swiss, French, Italian, Raleigh Proprietary, Ashtabula, Thomson, all kinds of other standards that each require a different solution.
I guess the question is: What year and brand of bike is it?
Last edited by cycle_maven; 07-19-11 at 08:04 AM.
#5
Thrifty Bill
Join Date: Jan 2008
Location: Mountains of Western NC
Posts: 23,525
Bikes: 86 Katakura Silk, 87 Prologue X2, 88 Cimarron LE, 1975 Sekai 4000 Professional, 73 Paramount, plus more
Mentioned: 96 Post(s)
Tagged: 0 Thread(s)
Quoted: 1236 Post(s)
Liked 964 Times
in
628 Posts
+10. Without knowing which bike, there are a multitude of bb threading. Just finished with a bike that had Swiss threads, bike before that was French, bike before that was British standard. Next in line is Ashtabula.
#6
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 1,096 Times
in
742 Posts
The probability of your older frame having a 1-1/8" headtube is low. Have it measured but I expect you will need a 1" fork and headset. Most 1-1/8" stems come with a 1-1/8" to 1" reducing shim so that should be ok.
#7
Senior Member
Thread Starter
its definitely a 1 inch.
raliegh r700. not sure the year but it has Down Tube shifters and easton program 3 maintubes.
raliegh pursuit. 80's
raliegh r700. not sure the year but it has Down Tube shifters and easton program 3 maintubes.
raliegh pursuit. 80's