Extending a threaded steerer tube....
#27
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.
Here is a new steertube. It's $10. 1" FORK STEER 240mm :: TUBES STEEL :: Nova Cycles Supply Inc.
#28
Your cog is slipping.



Joined: May 2009
Posts: 26,053
Likes: 100
From: Beverly MA
Bikes: EAI Bareknuckle
Now all you need to do is glue it on!
#29
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.
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.
#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?
#32
THE STUFFED


Joined: Oct 2009
Posts: 12,671
Likes: 21
From: San Francisco, CA
Bikes: R. Sachs Simplicity; EAI Bareknuckle; Madone SLR9 Gen 8
#33
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.
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.
#35
Clark W. Griswold




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!
#36
enginerd

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.
#37
Senior Member
Joined: Jan 2011
Posts: 208
Likes: 2
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.
#38
enginerd

Joined: Nov 2005
Posts: 732
Likes: 136
From: MKE
Bikes: officially too many now...
got it.
#39
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.
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.
#40
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
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
#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.
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.
#43
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.





