Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the October Giveaway for the Haven Bicycle Co. beach cruiser


Determining headset, head tube and steerer diameter measurements
#1
I've acquired a very large and possibly non standard old steel frame I'm going to use to build up an expedition bike. This will be my first bicycle build so I'll be learning along the way.

I'm hoping to build it from bits around the place, on the cheap, wherever possible (mates dead bikes, local 2nd hand bike shop parts pile etc) Due to the size of the head tube (213 mm length) I can't just throw on any fork so it looks like I'll be ordering one off the internet.

There are a few cheap forks with 250mm+ steerers around that are 1 1/8. My question is, using the internal head tube diameter (30mm) how can I determine what the diameter of the steerer should be? And consequently the headset?

I'm pretty new to this game and I appreciate any help I can get on this.

Cheers,

Jack
  Reply
#2
Jack, see if http://www.sheldonbrown.com/cribsheet-headsets.html is the info that you're looking for. I bet it is!
By the way, browse that site for hours. Tons of info there!

Rob
Wheelies don't pop themselves. (from a QBP fortune cookie)
  Reply
#3
You can use that inside diameter from the headtube and find a headset that fits. Threaded Headset:Make sure the new headset thread matches the new fork thread. Threadless: make sure the diameter of the headset and fork diameter are properly sized. Determine your fork length and headset stack height. Cut the fork if needed. Set the crown race on the fork. Careful not to damage the race. Threadless: set a star nut in the fork column. A little bit of math to do this but measure twice, cut once. Check out parktool.com for another resource
GO RIDE...
  Reply
#4
Quote:Threadless: set a star nut in the fork column. A little bit of math to do this but measure twice, cut once. Check out parktool.com for another resource

Or whack a Headlock, Hope Head Doctor, or similar in there. It's easier than a star nut and can be removed fairly easily as well. Downside is it's a bit more expensive. The Hope is a better one, but I have no idea if you can get Hope out in Australia

http://www.chainreactioncycles.com/Models.aspx?ModelID=911

http://www.chainreactioncycles.com/Models.aspx?ModelID=17766
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
V Brakes just won’t adjust properly
Today 12:19 AM
[Sponsored] Souke Sports Cycling Apparel...
Yesterday 09:17 PM
What was your first bicycle?
Yesterday 10:35 AM
Chain skips under heavy load when pedall...
Yesterday 06:03 AM
Bike evaluation
Yesterday 01:05 AM
VINTAGE DERAILLEURS: Campagnolo 50s-80s
Yesterday 12:52 AM
What's your No.1 concern when you purcha...
10-14-2021 11:24 PM
Is this frame dent a concern?
10-13-2021 04:50 PM
Looking for Cycling Apparel Testers - So...
10-12-2021 10:10 PM
Cycling Training Programs
10-12-2021 04:54 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Souke Sports
23 posts
no avatar 2. Criminal
15 posts
no avatar 3. ReapThaWhirlwind
13 posts
no avatar 4. Zviedrs
7 posts
no avatar 5. JR Namida
7 posts