Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

Bending fork legs

Reply

Old 11-23-09, 03:32 PM
  #1  
David Newton
Wood
Thread Starter
 
David Newton's Avatar
 
Join Date: Jun 2009
Location: Beaumont, Tx
Posts: 2,300

Bikes: Raleigh Sports: hers. Vianelli Professional & Bridgestone 300: mine

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Bending fork legs

I have this Bridgestone 300 in my size, after I get the current project done, I was thinking of converting this to a 3 speed upright city.

The forks bother me. Would it be crazy to bend the legs to more of a curve at the tips, an inch or so further out? I don't know exactly how I would do it, but I have a vise.
David Newton is offline  
Reply With Quote
Old 11-23-09, 03:39 PM
  #2  
EjustE
sultan of schwinn
 
EjustE's Avatar
 
Join Date: Sep 2009
Location: Lehigh Valley, PA
Posts: 3,581
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by David Newton View Post
Would it be crazy to bend the legs to more of a curve at the tips, an inch or so further out?
Yes. You are better off getting a curvier replacement fork.
EjustE is offline  
Reply With Quote
Old 11-23-09, 03:54 PM
  #3  
Road Fan
Senior Member
 
Road Fan's Avatar
 
Join Date: Apr 2005
Location: Ann Arbor, MI
Posts: 13,806

Bikes: 1980 Masi, 1984 Mondonico, 1984 Trek 610, 1980 Woodrup Giro, 2005 Mondonico Futura Leggera ELOS, 1967 PX10E, 1971 Peugeot UO-8

Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 636 Post(s)
The only reason I can thing of he'd be better off is if the job gets botched. I had a CrMo Trek fork bent by a framebuilder to increase trail about 7 years ago, and it is in fine condition today, still aligned and keeping the front wheel under control. And it's far cheaper than building one or buying a new one.

there's a minor issue of raising or lowering the front end, but this won't detract much from the effect of changing rake.
Road Fan is online now  
Reply With Quote
Old 11-23-09, 03:57 PM
  #4  
Road Fan
Senior Member
 
Road Fan's Avatar
 
Join Date: Apr 2005
Location: Ann Arbor, MI
Posts: 13,806

Bikes: 1980 Masi, 1984 Mondonico, 1984 Trek 610, 1980 Woodrup Giro, 2005 Mondonico Futura Leggera ELOS, 1967 PX10E, 1971 Peugeot UO-8

Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 636 Post(s)
have an expert bend it for you. It should cost around $40, he'll maintain alignment, and if what you want to do in particular is a bad idea, he'll tell you.
Road Fan is online now  
Reply With Quote
Old 11-23-09, 04:03 PM
  #5  
cudak888 
www.theheadbadge.com
 
cudak888's Avatar
 
Join Date: Sep 2005
Location: Southern Florida
Posts: 22,877

Bikes: http://www.theheadbadge.com

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 81 Post(s)
Get a replacement fork with the right rake. For that matter, dig up a frameset that was designed for that rake/trail combo.

-Kurt
__________________
cudak888 is offline  
Reply With Quote
Old 11-23-09, 04:05 PM
  #6  
Grand Bois
Senior Member
 
Grand Bois's Avatar
 
Join Date: Mar 2005
Location: Pinole, CA, USA
Posts: 17,421
Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 427 Post(s)
I did it using a vice, wooden blocks and a piece of pipe. I needed to increase the rake of a replacement fork for a Raleigh Competition. The original for had a huge curve in it. The only problem I encountered was that the chrome was ruined and I had to grind it off and paint the fork. I didn't mind experimenting with the fork since I got it for $10 at a swap.

I only added about 10 millimeters of rake.

Last edited by Grand Bois; 11-23-09 at 06:26 PM.
Grand Bois is offline  
Reply With Quote
Old 11-23-09, 04:36 PM
  #7  
clasher
Senior Member
 
clasher's Avatar
 
Join Date: May 2009
Location: Kitchener, ON
Posts: 2,296
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 134 Post(s)
A bike co-op should have a cheap fork with the right rake in it already, for cheaper than a framebuilder's time I would imagine.
clasher is offline  
Reply With Quote
Old 11-23-09, 04:56 PM
  #8  
David Newton
Wood
Thread Starter
 
David Newton's Avatar
 
Join Date: Jun 2009
Location: Beaumont, Tx
Posts: 2,300

Bikes: Raleigh Sports: hers. Vianelli Professional & Bridgestone 300: mine

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Thanks guys, I'll probably let this one stew for a while, maybe a better frame or fork will show, in time.

Bike co-op? I'm in Texas, I'm not sure they allow co-ops here. Maybe in Austin...
David Newton is offline  
Reply With Quote

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