Weird headset size
01-16-13, 01:34 PM
#1
Senior Member
Thread Starter
Join Date: Apr 2011
Location: Plymouth, UK
Posts: 92
Bikes: 2010 Trek 1.5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Weird headset size
Hi all, long time lurker here, I'm looking to buy a replacement threaded headset for my (2005) raleigh firefly. It has a 1 inch steerer, but the frame cups seem to have an outside diameter of 34mm, same as a 1 1/8th headset. I can find no mention of this type of headset anywhere, and it's got me beat. Any ideas?
01-16-13, 01:44 PM
#2
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 1,097 Times
in
743 Posts
I wonder if it's a "reducer" headset intended to allow a 1" steerer fork to be installed in a 1-1/8" headtube frame.
01-16-13, 01:55 PM
#3
Senior Member
Thread Starter
Join Date: Apr 2011
Location: Plymouth, UK
Posts: 92
Bikes: 2010 Trek 1.5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Didn't know they existed, sounds plausible though. I know I could buy some shims and then use a standard 1 inch headset, but I just wondered if there was a simpler solution.
01-16-13, 10:49 PM
#4
Insane Bicycle Mechanic
Join Date: Mar 2008
Location: other Vancouver
Posts: 9,877
Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 816 Post(s)
Liked 760 Times
in
397 Posts
__________________
Jeff Wills
Comcast nuked my web page. It will return soon..
Jeff Wills
Comcast nuked my web page. It will return soon..
01-17-13, 12:02 AM
#6
Senior Member
Join Date: Aug 2008
Posts: 2,589
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 239 Post(s)
Likes: 0
Liked 7 Times
in
7 Posts
What's simpler than shims?
https://problemsolversbike.com/produc...dtube_reducers
https://problemsolversbike.com/produc...dtube_reducers
01-17-13, 08:38 AM
#7
Senior Member
Thread Starter
Join Date: Apr 2011
Location: Plymouth, UK
Posts: 92
Bikes: 2010 Trek 1.5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
01-17-13, 09:27 AM
#8
Bianchi Goddess
Join Date: Apr 2009
Location: Shady Pines Retirement Fort Wayne, In
Posts: 27,969
Bikes: Too many to list here check my signature.
Mentioned: 194 Post(s)
Tagged: 2 Thread(s)
Quoted: 2968 Post(s)
Liked 3,047 Times
in
1,554 Posts
This is a British market bike? I don't know what year this one but it says it has a 1" semi cartridge HS
https://www.malleys.co.uk/bike/thebik...01/firefly.htm
Check with your local Raleigh dealer. Do you have any pics?
https://www.malleys.co.uk/bike/thebik...01/firefly.htm
Check with your local Raleigh dealer. Do you have any pics?
__________________
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
01-17-13, 11:25 AM
#9
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 1,097 Times
in
743 Posts
That brings up a request. I wish posters would indicate at least their country location in their Forum name block. We often give equipment or service advice based on assuming the poster is in the US and that may be useless to someone in Europe or Asia or OZ/NZ, etc.
01-17-13, 06:33 PM
#10
Senior Member
Thread Starter
Join Date: Apr 2011
Location: Plymouth, UK
Posts: 92
Bikes: 2010 Trek 1.5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
This is a British market bike? I don't know what year this one but it says it has a 1" semi cartridge HS
https://www.malleys.co.uk/bike/thebik...01/firefly.htm
Check with your local Raleigh dealer. Do you have any pics?
https://www.malleys.co.uk/bike/thebik...01/firefly.htm
Check with your local Raleigh dealer. Do you have any pics?
01-17-13, 08:36 PM
#11
Guest
Join Date: Jul 2008
Location: Grid Reference, SK
Posts: 3,768
Bikes: I never learned to ride a bike. It is my deepest shame.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 6 Times
in
6 Posts
My first thought was that the OP thinks that because the stem quill is 1" (25.4mm) in diameter, it is a 1" fork, but in reality, a 25.4mm quill goes into a 1-1/8" fork. The malleys page does not say it is a 1" stem, just that it is a quill stem.
01-17-13, 09:00 PM
#12
Senior Member
Join Date: Dec 2005
Posts: 7,848
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
There is a shimano 1 inch headset that use sealed bearings cartridges that are 34 mm ish (1 1/8)... the angles of the bearings are 35 degrees inside and outside.
If your bike uses a 1 inch headset (front tube), you have to locate one of those shimano threaded headsets. Ultegra.
The other option if you need a new headset just buy a new one, done.
If your bike uses a 1 inch headset (front tube), you have to locate one of those shimano threaded headsets. Ultegra.
The other option if you need a new headset just buy a new one, done.
01-18-13, 09:34 AM
#13
Senior Member
Thread Starter
Join Date: Apr 2011
Location: Plymouth, UK
Posts: 92
Bikes: 2010 Trek 1.5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I already have a 1 inch headset I can use that I bought before realising it didn't fit, so once the shims turn up I should be back in business.
