Go Back  Bike Forums > Bike Forums > Singlespeed & Fixed Gear
Reload this Page >

Extending a threaded steerer tube....

Search
Notices
Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

Extending a threaded steerer tube....

Thread Tools
 
Search this Thread
 
Old 04-01-16 | 03:44 PM
  #26  
hairnet's Avatar
Fresh Garbage
 
Joined: Apr 2009
Posts: 13,190
Likes: 30
From: Los Angeles

Bikes: N+1

tig weld everything because it's magic and won't cost more than a 6 pack of PBR
hairnet is offline  
Old 04-01-16 | 03:57 PM
  #27  
Regulatori's Avatar
Thread Starter
Senior Member
10 Anniversary
 
Joined: Jul 2015
Posts: 670
Likes: 56
Originally Posted by Cynikal
If this is serious, then the proper way to go about it is to heat up the fork crown and remove the existing steertube. Buy a new steertube from any of the numerous sources and braze in a new one that is the correct length. This should be done by a frame builder or someone with both the proper tooling and brazing experiance. Forks are not where to take short cuts unless you are really wanting to spend some quality time with your dentist.

Here is a new steertube. It's $10. 1" FORK STEER 240mm :: TUBES STEEL :: Nova Cycles Supply Inc.
Awesome, thanks. I had no idea you could just purchase a steering tube. That will work perfect.
Regulatori is offline  
Old 04-01-16 | 04:09 PM
  #28  
Scrodzilla's Avatar
Your cog is slipping.
Titanium Club Membership
Sheldon Brown Memorial - Titanium
15 Anniversary
 
Joined: May 2009
Posts: 26,053
Likes: 100
From: Beverly MA

Bikes: EAI Bareknuckle

Now all you need to do is glue it on!
Scrodzilla is offline  
Old 04-01-16 | 04:09 PM
  #29  
CliffordK's Avatar
Senior Member
10 Anniversary
Community Builder
Community Influencer
Active Streak: 30 Days
 
Joined: Nov 2014
Posts: 27,576
Likes: 5,455
From: Eugene, Oregon, USA
Your sleeve should be fine.

DON'T EPOXY & WELD. You'll make a mess.

Either Sleeve + point weld in the crack (should be plenty strong if done well)
Or Sleeve + Braze (for wicking action).

Make sure you leave enough space for your handlebar stem.

You may do best by making sure the crown race is installed BEFORE welding.
CliffordK is offline  
Old 04-01-16 | 10:28 PM
  #30  
Senior Member
 
Joined: Feb 2013
Posts: 281
Likes: 0
From: VA -> IN

Bikes: ones with two wheels

so aside from the tire clearance wont a 1" big block fork suffice?
street_sweeper is offline  
Old 04-01-16 | 11:18 PM
  #31  
Nagrom_'s Avatar
Fixie Infamous
Titanium Club Membership
10 Anniversary
 
Joined: Dec 2011
Posts: 10,480
Likes: 28
The tire clearance is pretty much the only thing he's after.
__________________
Originally Posted by seau grateau
No offense but you're an idiot.
PedalRoom
Nagrom_ is offline  
Old 04-02-16 | 12:38 AM
  #32  
Leukybear's Avatar
THE STUFFED
Titanium Club Membership
15 Anniversary
 
Joined: Oct 2009
Posts: 12,671
Likes: 21
From: San Francisco, CA

Bikes: R. Sachs Simplicity; EAI Bareknuckle; Madone SLR9 Gen 8

Let's see these creases on the back of the fork legs.
Often times, such damage once addressed is only cosmetic.
__________________
¿pɐǝɹ oʇ sᴉ sᴉɥʇ ƃuᴉʎouuɐ ʍoɥ ǝǝs

Originally Posted by veganbikes
Pound sign: Kilo TT
Leukybear is offline  
Old 04-02-16 | 04:46 AM
  #33  
Regulatori's Avatar
Thread Starter
Senior Member
10 Anniversary
 
Joined: Jul 2015
Posts: 670
Likes: 56
I'll post pics tomorrow. The front of the blades have a crease. The rear area (Behind the crease) actually have a small split in the fork blade...most likely the fork was an inexpensive steel and it split at the vertical seam.

A friend (bike shop mechanic) looked at it tonight and it seems to think someone tried to heat the blades to bend the blades/change the rake....and it didn't use enough heat/crimped the blades. We found tell tale bench vise marks on the steerer blade under the grease.
Regulatori is offline  
Old 04-02-16 | 04:47 AM
  #34  
Regulatori's Avatar
Thread Starter
Senior Member
10 Anniversary
 
Joined: Jul 2015
Posts: 670
Likes: 56
Originally Posted by Nagrom_
The tire clearance is pretty much the only thing he's after.
Guilty as charged.
My original fork has very small clearances so it would be nice to keep the same angles/level top tube.
Regulatori is offline  
Old 04-02-16 | 09:49 PM
  #35  
Clark W. Griswold
10 Anniversary
Community Builder
Community Influencer
Active Streak: 30 Days
 
Joined: Mar 2014
Posts: 18,254
Likes: 6,626
From: ,location, location

Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), R+M Supercharger2 Rohloff, Habanero Ti 26

If you were the owner of the company I work for you would have already pulled out the hot glue gun and been out riding! Stop wasting time listening to these fools and get yourself some hot glue and stack tubes on top of tubes all day long. As long as you don't touch or ride the bike, it should be super safe!
veganbikes is offline  
Old 04-04-16 | 10:06 AM
  #36  
enginerd
20 Anniversary
 
Joined: Nov 2005
Posts: 732
Likes: 136
From: MKE

Bikes: officially too many now...

Wait - so the fork in question has damage to the fork blades/improper cold forming *and* the steerer is too short? Make it into a TP holder and buy a new fork.
EnzoRWD is offline  
Old 04-04-16 | 10:30 AM
  #37  
Senior Member
 
Joined: Jan 2011
Posts: 208
Likes: 2
Originally Posted by EnzoRWD
Wait - so the fork in question has damage to the fork blades/improper cold forming *and* the steerer is too short? Make it into a TP holder and buy a new fork.

Um, no. Current fork with correct steerer tube and short axle to crown length has damaged fork blades. The whole point of the OP's post is replacing the damaged fork.

OP can't find a used fork with short axle to crown length and long steerer tube but can find a used fork with short axle to crown length and short steerer tube.

Solution: Buy used fork with short axle to crown length, take current fork and new used fork to a good brazer and have him swap the steerer tube. Repaint fork. Done.
vettracer is offline  
Old 04-04-16 | 10:36 AM
  #38  
enginerd
20 Anniversary
 
Joined: Nov 2005
Posts: 732
Likes: 136
From: MKE

Bikes: officially too many now...



got it.
EnzoRWD is offline  
Old 04-04-16 | 05:00 PM
  #39  
taras0000's Avatar
Lapped 3x
 
Joined: Dec 2004
Posts: 1,723
Likes: 23
From: 43.2330941,-79.8022037,17
So now you can get yourself a steerer for cheap (plus shipping I'm assuming). Now you have to find a a cheap fork (plus shipping as well I guess). Then you have to find a framebuilder who is willing to to take the time out of their queue to prep the fork for re-heat, remove the old steerer, and install the new one (you might have to ship this stuff out to them as well if you cannot find someone local). it's not as simple as it sounds. A fork crown is cast and has lots of metal to sink heat into. It will take someone with lots of experience to sweat that steerer out properly without ruining the fork. What do you figure your end cost is going to be on this project and how long do you think it's going to take?

My advice to you is to maybe prioritize your aesthetics a little less and go with something more practical. Or be prepared to pay to maintain the cool factor.

Last edited by taras0000; 04-04-16 at 09:53 PM.
taras0000 is offline  
Old 04-06-16 | 06:06 AM
  #40  
applesoggy's Avatar
Senior Member
 
Joined: Apr 2015
Posts: 50
Likes: 0
From: Tustin, California

Bikes: Bianchi Pista Via Condotti, IRO Angus. Blue Turbo

I feel for you in this dilemma. Purchasing a fork online can be difficult, I'm going through the same thing trying to find a threaded fork for my Bianchi which matches or comes close to my current trail.

And as you stated in your other related post, people seem to measure axle to crown and rake and other measurements differently, or refuse to measure at all. I had one guy on eBay come up with some crazy figures and after three emails I gave up. Pictures with a measuring tape don't always work either.

Try to find a lbs with a gazillion forks, that's what I'm doing, but so far no love
applesoggy is offline  
Old 04-06-16 | 07:21 AM
  #41  
Senior Member
 
Joined: Jan 2014
Posts: 634
Likes: 18
Okay lemmie see if I have this right:

1) you need a new fork
2) you've made this difficult for yourself by deciding it has to be NJS
3) you want to get a non-fitting NJS fork, then modify it, which will mean it isn't NJS anymore

Common sense says just get a normal fork.
Cute Boy Horse is offline  
Old 04-06-16 | 01:38 PM
  #42  
seau grateau's Avatar
Senior Member
 
Joined: Sep 2009
Posts: 9,948
Likes: 400
From: PHL

Bikes: Litespeed Catalyst, IRO Rob Roy, All City Big Block

That would be way too easy.
seau grateau is offline  
Old 04-06-16 | 06:45 PM
  #43  
taras0000's Avatar
Lapped 3x
 
Joined: Dec 2004
Posts: 1,723
Likes: 23
From: 43.2330941,-79.8022037,17
Yup! Less hassle, quicker turnaround (at least you can paint it yourself, or have it locally done right away), and probably cheaper too when all is said and done.
taras0000 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mas76
Bicycle Mechanics
5
09-05-17 09:17 AM
byrd48
Bicycle Mechanics
5
09-02-17 08:23 PM
mark_m
Bicycle Mechanics
23
01-22-16 11:11 PM
Nessism
Bicycle Mechanics
19
09-03-13 07:16 PM
kraftwerk
Bicycle Mechanics
11
04-20-10 09:24 AM

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



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

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.