Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About
It is currently Mon May 30, 2016 8:05 am
Recently the board software has been updated and there are some known bugs/failures:
- Avatars are currently not being displayed ✔ FIXED
- Tapatalk connection is currently broken ✔ FIXED

If you find more errors please post it here: http://weightweenies.starbike.com/forum/viewtopic.php?f=7&t=139062


All times are UTC+01:00





Post new topic  Reply to topic  [ 9 posts ] 
Author Message
PostPosted: Mon Mar 11, 2013 6:52 pm 
Offline

Joined: Mon Aug 23, 2010 8:17 pm
Posts: 115
Location: near Seattle
I just lowered the -10 degree stem on my 1999 Colnago Oval Master Titanium another 10 mm, so that it's now below 40mm of spacers. It can't go any lower. The bike would look better with, say, 30mm of the spacer tower lopped off. Would it be worthwhile to have an experienced mechanic cut the steerer tube? It's a 1" steerer tube, on a fork labeled Colnago. In the unlikely event of a mechanic error, it might be hard to find parts to make it right. I'm not thinking about maintaining versatile sizing to make it easier to sell the bike later.

_________________
Saura mon coeur que mon cul poise.

adapted from Rabelais


Top
   
PostPosted: Mon Mar 11, 2013 7:19 pm 
Offline
User avatar

Joined: Thu May 04, 2006 4:43 pm
Posts: 5326
Location: Wherever there's a mountain beckoning to be climbed
Bring it to a good mechanic, and not to one of Walmart's expert bike assemblers.


Top
   
PostPosted: Mon Mar 11, 2013 9:16 pm 
Offline
User avatar

Joined: Mon Jan 23, 2006 6:35 am
Posts: 5072
Location: New York
If this is a carbon steer tube you can use a tool to keep the metal saw blade straight.

If this is a aluminum steer tube you can use a tool to keep the metal saw blade straight.

If this is a threaded steel tube you can do the same but make sure you measure correctly and cut it straight or you will be unable to thread the headset on. Then you will need to re-thread.

_________________
I never took drugs to improve my performance at any time. I will be willing to stick my finger into a polygraph test if anyone with big media pull wants to take issue. If you buy a signed poster now it will not be tarnished later. --Graeme Obree


Top
   
PostPosted: Wed Mar 13, 2013 5:18 am 
Offline
Shop Owner

Joined: Sat Jun 13, 2009 4:02 am
Posts: 1980
Location: NoVA/DC
On threaded steerer tubes, always put the first threaded part of the headset on the fork before cutting. When you are done, removing the cone will clean up any deformed threads.


Top
   
PostPosted: Wed Mar 13, 2013 1:35 pm 
Offline
User avatar

Joined: Mon Jan 23, 2006 6:35 am
Posts: 5072
Location: New York
That is a good idea to do it that way. Maybe cleaning and adding a bit of oil to the threads as well before removing the screwed in headset piece.

_________________
I never took drugs to improve my performance at any time. I will be willing to stick my finger into a polygraph test if anyone with big media pull wants to take issue. If you buy a signed poster now it will not be tarnished later. --Graeme Obree


Top
   
PostPosted: Wed Mar 13, 2013 2:06 pm 
Offline

Joined: Tue May 23, 2006 9:39 pm
Posts: 568
besides using a cutting guide for cutting the carbon steerer tube, i use a carbon cutting blade (without actual teeth, but a textured cutting edge), and wrap the area i'm cutting with 3M Scotch tape to prevent fraying. after cutting, i peel the tape off and use a metal file (singlecut) and or sand paper to smooth out the cut edge...slightly bevel the edges. this keeps the steerer tube edge from catching the rubber seal on the top headset cap.

_________________
- AX Lightness Vial EVO D + DA9070 + Enve SES 4.5 CK hubs
- Parlee Z5 SLi + DA9070 + Enve 3.4 Tune/Dash hubs
- Parlee ESX + DA9070 + Enve SES 6.7 CK hubs
- Independent Fabrication Ti FLW + Campy SR11 + Enve 3.4 CK hubs


Top
   
PostPosted: Thu Mar 14, 2013 10:40 pm 
Offline

Joined: Thu Oct 23, 2003 5:18 pm
Posts: 741
Location: Austin
taina wrote:
I just lowered the -10 degree stem on my 1999 Colnago Oval Master Titanium another 10 mm, so that it's now below 40mm of spacers. It can't go any lower. The bike would look better with, say, 30mm of the spacer tower lopped off. Would it be worthwhile to have an experienced mechanic cut the steerer tube? It's a 1" steerer tube, on a fork labeled Colnago. In the unlikely event of a mechanic error, it might be hard to find parts to make it right. I'm not thinking about maintaining versatile sizing to make it easier to sell the bike later.


you know switching to a -6* will net you another 5mm stack(for a 100mm stem)

_________________
www.crumptoncycles.com


Top
   
PostPosted: Thu Mar 14, 2013 11:18 pm 
Offline

Joined: Mon Aug 23, 2010 8:17 pm
Posts: 115
Location: near Seattle
I started to get back into cycling three years ago. But I never got out of trigonometry. With getting rid of spacers and lowering stem angle, I've lowered my handlebars almost 12 cm over three years, in small increments, months apart. By the time I'm good enough to deserve a Crumpton, I'll be ready to go lower than the headtube on my current bike reasonably allows.

Thanks for the advice. I had a very good mechanic cut the steerer tube.

_________________
Saura mon coeur que mon cul poise.

adapted from Rabelais


Top
   
PostPosted: Sat Mar 16, 2013 12:46 am 
Offline

Joined: Tue Nov 11, 2003 9:47 pm
Posts: 2154
Location: Santa Cruz, California, USA
http://yojimg.net/bike/web_tools/stem.php


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 9 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Broken steerer tube - result of a crash or not?

in Road

mrlobber

10

801

Mon Sep 07, 2015 9:23 am

mrgray View the latest post

There are no new unread posts for this topic. Bar/stem combo for 1.25" steerer?

in Road

kkibbler

2

307

Mon Feb 29, 2016 11:24 am

romalor View the latest post

There are no new unread posts for this topic. MCFK Steerer for Lefty on New Cannondale Slate

in Road

Snicks

7

636

Sat Dec 12, 2015 2:49 pm

morrisond View the latest post

There are no new unread posts for this topic. Attachment(s) Damaged fork steerer crown. Should I replace it?

in Road

isharamet

4

452

Mon Aug 03, 2015 7:54 am

isharamet View the latest post

There are no new unread posts for this topic. Mcfk carbon steerer - expander plug required ?

in MTB

rschenkels

6

464

Mon Dec 14, 2015 8:47 am

eliflap-scalpel View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: djcharlou, nlop and 9 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited