Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Flat bar to Bull horn conversion Questions

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.

Flat bar to Bull horn conversion Questions

Old 07-03-08, 01:12 PM
  #1  
cg1985
Goon
Thread Starter
 
Join Date: Jul 2008
Location: Ypsilanti, MI
Posts: 864

Bikes: Rocky Mountain RC30, Soma Sport Fixed

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Flat bar to Bull horn conversion Questions

Hey, I was looking at replacing my Flat bar handle bars on my Commuter to Bull horns.

A friend of mine has a Single speed bike with bull horns and I really like the grips.

This is My Bike. Note that hte shifters are attached to the Brakes



I'd like to put This on my bike, or something similar:



Is it Possible to just take the Brakes and shifters off this and mount them in a similar fashion on the Bull horns?

Or would I have to get new shifters/brake-handles?

Last edited by cg1985; 07-03-08 at 01:19 PM.
cg1985 is offline  
Old 07-03-08, 01:17 PM
  #2  
04jtb
Senior Member
 
04jtb's Avatar
 
Join Date: Mar 2007
Location: West Dorset, UK
Posts: 908

Bikes: 1983 Dawes Galaxy, 2006 Raleigh Airlite, 1982 Sun Solo (fixed)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Firstly "Breaks" don't seem very effective

you won't be able to mount the current brake/shifters on those bullhorns, will need new ones
__________________
Originally Posted by cc700 View Post
i jam my thumbs up and back into the tubes. this way i can point my fingers straight out in front to split the wind and attain an even more aero profile, and the usual fixed gear - zen - connectedness feeling through the drivetrain is multiplied ten fold because my thumbs become one with the tubing.
A group for all Dawes Galaxy owners to give and recieve information about them
http://flickr.com/groups/dawes_galaxy/
04jtb is offline  
Old 07-03-08, 01:19 PM
  #3  
cg1985
Goon
Thread Starter
 
Join Date: Jul 2008
Location: Ypsilanti, MI
Posts: 864

Bikes: Rocky Mountain RC30, Soma Sport Fixed

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Breaks? don't know what you speak of.

Hmm. Kind of figured. But I was dreaming.
cg1985 is offline  
Old 07-03-08, 02:14 PM
  #4  
Sekine
Oldschool
 
Join Date: Jun 2008
Posts: 57
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
They might work, I mean, it'd be less than idea but if the bullhorns are wide enough you could have clearance.
Sekine is offline  
Old 07-03-08, 03:06 PM
  #5  
JiveTurkey
Low car diet
 
JiveTurkey's Avatar
 
Join Date: Aug 2007
Location: Corvallis, OR, USA
Posts: 2,407

Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Bullhorns and flat bars use different diameter standards. Flat bar=22.2; bullhorns=23.8mm. The current shifter/brake levers won't fit on the new bars.

As a cheap alternative, you can add bar ends. Also, you can cut the flat bars to make them narrower first.
JiveTurkey is offline  
Old 07-03-08, 03:42 PM
  #6  
Landgolier
THIS SPACE FOR RENT
 
Join Date: Jan 2006
Posts: 2,849
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by JiveTurkey View Post
Bullhorns and flat bars use different diameter standards. Flat bar=22.2; bullhorns=23.8mm. The current shifter/brake levers won't fit on the new bars.

As a cheap alternative, you can add bar ends. Also, you can cut the flat bars to make them narrower first.
If you do bar ends you have to do cross levers for the brakes -- $100 total by the time you're done.

Chop your flat bar down a little and get some handlebar extensions, it's basically the same thing as bullhorns.
Landgolier is offline  
Old 07-03-08, 03:45 PM
  #7  
Landgolier
THIS SPACE FOR RENT
 
Join Date: Jan 2006
Posts: 2,849
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
There is one alternative I just though of, if you find some old steel road drops that are 22.2 you could make a "flop and chop" bar, and assuming your existing shifters would make it around the curved section you'd be set. Would look a little weird, but whatever. If you want to try this I think I have a set of bars like this, you can have them for the postage -- PM me.
Landgolier is offline  
Old 07-03-08, 04:01 PM
  #8  
JiveTurkey
Low car diet
 
JiveTurkey's Avatar
 
Join Date: Aug 2007
Location: Corvallis, OR, USA
Posts: 2,407

Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Landgolier View Post
If you do bar ends you have to do cross levers for the brakes -- $100 total by the time you're done.

Chop your flat bar down a little and get some handlebar extensions, it's basically the same thing as bullhorns.
We're talking about the same thing: http://www.performancebike.com/shop/...slisearch=true
JiveTurkey is offline  
Old 07-03-08, 06:45 PM
  #9  
cg1985
Goon
Thread Starter
 
Join Date: Jul 2008
Location: Ypsilanti, MI
Posts: 864

Bikes: Rocky Mountain RC30, Soma Sport Fixed

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Landgolier View Post
There is one alternative I just though of, if you find some old steel road drops that are 22.2 you could make a "flop and chop" bar, and assuming your existing shifters would make it around the curved section you'd be set. Would look a little weird, but whatever. If you want to try this I think I have a set of bars like this, you can have them for the postage -- PM me.
Hmm I went to the Local bike store and I decided I am going to get it set up nice and professional looking. He said on my bike if I got Bull horns and bar-end shifters/brake handles, that I wouldn't have to change the Front Derailer like I would if I got the full Drop handle bars.

He said that I will run me about 200 Bucks to get the new shifters, brakehandles and bull horn.

But thanks dude!
cg1985 is offline  
Old 07-06-08, 06:53 PM
  #10  
cg1985
Goon
Thread Starter
 
Join Date: Jul 2008
Location: Ypsilanti, MI
Posts: 864

Bikes: Rocky Mountain RC30, Soma Sport Fixed

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Landgolier View Post
There is one alternative I just though of, if you find some old steel road drops that are 22.2 you could make a "flop and chop" bar, and assuming your existing shifters would make it around the curved section you'd be set. Would look a little weird, but whatever. If you want to try this I think I have a set of bars like this, you can have them for the postage -- PM me.
Actually, if you, or anyone else might have some old Steel Drops what are 22.2 I would be all about getting some. To try it out.

The Flat bar shifters and the brake levers on my bike are built together, And the way they are attached and the way the shifting works, I would still be able to comfortably shift, the only downside is that I would have to lean way the hell over to see what gear I am in, but I'm not too worried about that, as I can generally feel whether or not I need to shift.

Or at least it would be worth a shot.

Last edited by cg1985; 07-06-08 at 06:58 PM.
cg1985 is offline  
Old 07-06-08, 07:03 PM
  #11  
cg1985
Goon
Thread Starter
 
Join Date: Jul 2008
Location: Ypsilanti, MI
Posts: 864

Bikes: Rocky Mountain RC30, Soma Sport Fixed

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Second Question is, How do Butterfly Handles work... And can I get those in 22.2mm? Those might be a better option for more handle positions if the flop and chop Idea fails.

Do you lean forward more with Butterfly handlebars? I like the leaned feel, even if it doesn't make that much of a difference, being more aero-dynamic is appealing to me.
cg1985 is offline  
Old 07-07-08, 12:00 AM
  #12  
JiveTurkey
Low car diet
 
JiveTurkey's Avatar
 
Join Date: Aug 2007
Location: Corvallis, OR, USA
Posts: 2,407

Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Talking about these? http://www.sheldonbrown.com/harris/h...l#handlebarsup

You'd install them with the open ends closer to you. And I think most people with flat-bar/MTB brake/shift levers shifters mount them on those sections (22.2mm diameter by the way). The bars give you three main hand positions. Wrap 'em in handlebar tape.
JiveTurkey is offline  
Old 07-09-08, 09:30 AM
  #13  
cg1985
Goon
Thread Starter
 
Join Date: Jul 2008
Location: Ypsilanti, MI
Posts: 864

Bikes: Rocky Mountain RC30, Soma Sport Fixed

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by JiveTurkey View Post
Talking about these? http://www.sheldonbrown.com/harris/h...l#handlebarsup

You'd install them with the open ends closer to you. And I think most people with flat-bar/MTB brake/shift levers shifters mount them on those sections (22.2mm diameter by the way). The bars give you three main hand positions. Wrap 'em in handlebar tape.
Are Trekking handlebars 22.2mm by standard? The ones on Harris Cyclery are, but are out of stock.

I'm going to try Flop Chops first, but these are my Plan B.
cg1985 is offline  
Old 07-10-08, 09:57 AM
  #14  
cg1985
Goon
Thread Starter
 
Join Date: Jul 2008
Location: Ypsilanti, MI
Posts: 864

Bikes: Rocky Mountain RC30, Soma Sport Fixed

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I had thought it was impossible to put new ISO Drop Bars on my Bike, or bull horns for that matter, but I have done some homework and it looks possible.

The Rocky Mountain Touring bike, the Sherpa 30, uses Tektro Oryx Cantilevers, which are short pull as they use Sora shifters, They mount below the rim, just like my current shifters. Which means I could buy a new stem, a set of Sora Shifters/brake-levers, Tektro Oryx cantilever brakes, a Drop bar, and I'd be all set to convert.

The Front de-Railer might need to be replaced too. The Tektro Oryx Cantilevers are only 15 bucks a piece, the Stem probably is about 20, the Lever/shifter set is around 150 (I believe what I was looking at was a "set"), the Bar is about 40 bucks, and probably 10 bucks for new cabling.

250 bucks + 30 for the Front derailer = about 300 dollars (shipping/tax) to upgrade to drop bars if I bought everything new.

I could probably find most of these parts Used.

EDIT! Looked at Ebay, Shifters/levers I could get for about 50 bucks, So that brings it down to about 200 bucks. I could get handlebars from ebay for 25 bucks (with shipping) so that's 180. Not too bad at all.


That said, I'm going to try that flop and chop Idea first, the trekking bar second, and then MAYBE try the above set up if I get desperate.

Last edited by cg1985; 07-10-08 at 10:09 AM.
cg1985 is offline  
Old 07-10-08, 12:22 PM
  #15  
tellyho
Your mom
 
Join Date: Aug 2006
Posts: 2,544
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Boy, $200 is a new bike for me. I'd have trouble justifying that for new bars. I'd try bar ends and really want to like them a lot.
tellyho is offline  
Old 07-10-08, 12:31 PM
  #16  
cg1985
Goon
Thread Starter
 
Join Date: Jul 2008
Location: Ypsilanti, MI
Posts: 864

Bikes: Rocky Mountain RC30, Soma Sport Fixed

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by tellyho View Post
Boy, $200 is a new bike for me. I'd have trouble justifying that for new bars. I'd try bar ends and really want to like them a lot.
Heh, well the Rocky mountain frame I have is really nice, I really like it, and it seems funny to upgrade to a drop bar road bike with the same frame (both use RMB Custom 7005 Aluminum) for 1000+ dollars when I can spend 200 and upgrade my current frame to have the road bike Components.

I have bar ends, but the flat bars are so wide that the hand position isn't very aero, or comfortable. So I'd have to chop the bars to make it comfortable. And If I am going to alter the bike I might as well try the Bull horns, and If I really like it, and want to go full drop, say, in a years time, Then I can spend 200 bucks and get the same components for the same frame they use for their road bikes.
cg1985 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
lupy
Training & Nutrition
10
11-13-15 07:47 PM
tspek
"The 33"-Road Bike Racing
35
02-16-10 01:40 PM
Ronny2008
Training & Nutrition
14
09-01-08 08:56 AM
myenzo
Training & Nutrition
4
01-31-05 07:29 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.