Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Cutting a Fork

Old 10-30-07, 06:59 PM
  #1  
joecool2727
Senior Member
Thread Starter
 
Join Date: Oct 2007
Posts: 442
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Cutting a Fork

I want to cut the steerer tube on my road bike. Its a carbon fork with a carbon steerer and im currently riding it with spacers sticking out on top. Any advice on how to go about this? Do i just take a hacksaw and start cutting? Should i just take it to the LBS? Thanks.
joecool2727 is offline  
Old 10-30-07, 07:18 PM
  #2  
ktk90w
Member
 
Join Date: Feb 2005
Location: East Asia
Posts: 33

Bikes: 2012 Surly Ogre, 2008 Fisher Wahoo

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 1 Time in 1 Post
I've used a hacksaw on my garage sale and pawn shop bikes several times. Carbon says, "take me to the LBS," to me. Someone else might know more, but I'd say be very careful.

KTK
ktk90w is offline  
Old 10-30-07, 07:21 PM
  #3  
lennyk
Senior Member
 
Join Date: Mar 2006
Posts: 483
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
you need a 32 tooth hacksaw to get a clean cut
lennyk is offline  
Old 10-30-07, 07:44 PM
  #4  
nadimk
Senior Member
 
Join Date: Oct 2007
Posts: 84
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Absolutely do not cut it yourself. Take it to a local shop to do it properly. Also, with carbon steerers, it is advisable to clamp it a little ways down with spacers on top. The very top of the steerer is the weak spot. Look at all the road bikes the pros ride. There are always spacers on and below the stem clamp.
nadimk is offline  
Old 10-30-07, 08:04 PM
  #5  
Tinkeric
Senior Member
 
Join Date: Jul 2007
Location: Maryland
Posts: 136

Bikes: Bridgestone '90 RB-1, Giant TCR Alloy, 90's mountain bikes galore.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Don't use a tubing cutter.

Last edited by Tinkeric; 10-30-07 at 08:42 PM.
Tinkeric is offline  
Old 10-30-07, 08:14 PM
  #6  
vasracer
vasracer
 
Join Date: Oct 2007
Location: NYC!!!!
Posts: 247

Bikes: Leader LD-735TR, Mercier Kilo tt, 3Rensho pursuit(not complete)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
We use a diamond dust hacksaw blade at the shop. The diamond dust blade doesn't have teeth like a hacksaw blade so it doesn't rip through the carbon, potentially damaging the remaining carbon, it sands through it making a smooth cut.
vasracer is offline  
Old 10-30-07, 08:16 PM
  #7  
Icey_rr1
shovel motor
 
Join Date: Oct 2007
Location: central mn
Posts: 33

Bikes: steelhead 1x9

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
You can't use a tubing cutter on carbon.

If you have an old stem you can use it as a guide to make a squared cut.
Use a blade with high tooth count and wrap the steer column with masking tape. cut through the tape, it will keep the tube from splintering/ fraying
Icey_rr1 is offline  
Old 10-30-07, 08:23 PM
  #8  
capwater
Senior Member
 
capwater's Avatar
 
Join Date: Dec 2004
Location: Quahog, RI
Posts: 1,509

Bikes: Giant TCR Comps, Cdale R5000, Klein Q-Pro, Litespeed Siena, Piasano 105, Redline Conquest Pro, Voodoo Bizango, Fuji Aloha

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Tubing cutter? Take carbon to an LBS?

It's fairly simple. First measure about three times to get the right spot. Take a length of masking tape and wrap it around so you have a smooth line. Use a fine tooh hacksaw takeing a series of cuts around the tube. Go slowly and you'll be fine. Done it a dozen times and it always comes out right.
capwater is offline  
Old 10-30-07, 09:48 PM
  #9  
joecool2727
Senior Member
Thread Starter
 
Join Date: Oct 2007
Posts: 442
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Thanks all
joecool2727 is offline  
Old 10-30-07, 10:31 PM
  #10  
Tapeworm21
Senior Member
 
Tapeworm21's Avatar
 
Join Date: Jan 2007
Location: Berkeley
Posts: 2,265

Bikes: 2010 Tarmac SL, 2013 Fairdale Weekender, 2013 Fairdale Coaster, 1995 Specialized M2 Pro, 1972 Schwinn Heavy Duty, 2014 Surley Long Haul Trucker

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Don't use a blade that has cut metal before. Please and thank you.
Tapeworm21 is offline  
Old 10-31-07, 07:17 AM
  #11  
serpico7
Senior Member
 
serpico7's Avatar
 
Join Date: Jul 2006
Location: Raleigh, NC
Posts: 786
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
It's pretty easy to do. Do a search in this sub-forum. I posted a detailed guide on how I did it several weeks ago. Most important thing is that you need to wear a mask.
serpico7 is offline  
Old 10-31-07, 10:06 AM
  #12  
rmfnla
Senior Member
 
rmfnla's Avatar
 
Join Date: May 2005
Location: La La Land (We love it!)
Posts: 6,330

Bikes: Gilmour road, Curtlo road; both steel (of course)

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 268 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by capwater View Post
Tubing cutter? Take carbon to an LBS?

It's fairly simple. First measure about three times to get the right spot. Take a length of masking tape and wrap it around so you have a smooth line. Use a fine tooh hacksaw takeing a series of cuts around the tube. Go slowly and you'll be fine. Done it a dozen times and it always comes out right.
This is true but any decent shop will have a cutting guide that virtually guarantees a straight, clean cut.

I've found that a six-pack of decent beer will usually inspire them to drop whatever they are doing and jump right on that steering tube; at no charge, of course.
__________________
Today, I believe my jurisdiction ends here...
rmfnla is offline  
Old 10-31-07, 10:59 AM
  #13  
nadimk
Senior Member
 
Join Date: Oct 2007
Posts: 84
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Do what you are comfortable with, but don't clamp your stem to the very top of a carbon steerer.
nadimk is offline  
Old 11-02-07, 11:46 PM
  #14  
joecool2727
Senior Member
Thread Starter
 
Join Date: Oct 2007
Posts: 442
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Operation was a success. (Atleast cosmetically, havent ridden it yet.) Thanks all.
joecool2727 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
steve0257
General Cycling Discussion
0
12-25-12 08:21 AM
TrekDen
Road Cycling
3
07-02-11 06:23 PM
Ka_Jun
Foo
19
06-26-09 03:01 PM
info
Foo
2
03-28-09 12:25 AM
aliensporebomb
Electronics, Lighting, & Gadgets
1
07-07-08 01:51 PM

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


Thread Tools
Search this Thread

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

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.