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

Converting my wife’s drop bar road bike to a flat bar

Search
Notices
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.

Converting my wife’s drop bar road bike to a flat bar

Thread Tools
 
Search this Thread
 
Old 03-01-22, 11:24 AM
  #1  
Newbie
Thread Starter
 
Join Date: Dec 2017
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
Liked 3 Times in 3 Posts
Converting my wife’s drop bar road bike to a flat bar

Hi,

I am trying to figure out if I can simply buy flat bar v brake levers and mtb style cables to work on my wife’s mechanical road disc brakes. She is having issues with the drop bars, and I want to convert it to a flat bar for her. The bike is a mix of Sora and Tiagra.

Im not sure what mechanical brakes they are. I took a bad picture of them as the bike is tucked away in my shed.

Regarding the shifting, it seems that I can use any Shimano compatible shifter that has a 2 x 9.

I have been reading conflicting info on the internet and was hoping someone familiar with these conversions could help me out.

Thanks
BiggFred is offline  
Old 03-01-22, 12:31 PM
  #2  
Mad bike riding scientist
 
cyccommute's Avatar
 
Join Date: Nov 2004
Location: Denver, CO
Posts: 27,355

Bikes: Some silver ones, a red one, a black and orange one, and a few titanium ones

Mentioned: 152 Post(s)
Tagged: 1 Thread(s)
Quoted: 6215 Post(s)
Liked 4,213 Times in 2,362 Posts
Originally Posted by BiggFred
Hi,

I am trying to figure out if I can simply buy flat bar v brake levers and mtb style cables to work on my wife’s mechanical road disc brakes. She is having issues with the drop bars, and I want to convert it to a flat bar for her. The bike is a mix of Sora and Tiagra.

Im not sure what mechanical brakes they are. I took a bad picture of them as the bike is tucked away in my shed.

Regarding the shifting, it seems that I can use any Shimano compatible shifter that has a 2 x 9.

I have been reading conflicting info on the internet and was hoping someone familiar with these conversions could help me out.

Thanks

If the discs are being used with drop bar road levers, they are short pull. Going to a v-brake lever would be not work quite correctly. See this discussion over in the Touring forum. You need levers for cantilever brakes or road brakes.
__________________
Stuart Black
Plan Epsilon Around Lake Michigan in the era of Covid
Old School…When It Wasn’t Ancient bikepacking
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!



cyccommute is offline  
Likes For cyccommute:
Old 03-01-22, 12:54 PM
  #3  
Newbie
Thread Starter
 
Join Date: Dec 2017
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
Liked 3 Times in 3 Posts
Originally Posted by cyccommute
If the discs are being used with drop bar road levers, they are short pull. Going to a v-brake lever would be not work quite correctly. See this discussion over in the Touring forum. You need levers for cantilever brakes or road brakes.

Thanks for the info!
BiggFred is offline  
Old 03-01-22, 01:06 PM
  #4  
...
 
Join Date: Oct 2021
Location: Whitestone and Rensselaerville, New York
Posts: 1,502

Bikes: Bicycles? Yup.

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 479 Post(s)
Liked 1,574 Times in 731 Posts
The brake mfgr says the Render R model works with road levers.

https://www.promaxcomponents.com/pro...-r-disc-brake/
BTinNYC is online now  
Likes For BTinNYC:
Old 03-01-22, 01:17 PM
  #5  
Newbie
Thread Starter
 
Join Date: Dec 2017
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
Liked 3 Times in 3 Posts
Thanks for the responses. Got the info I was looking for fast! You guys are the best.

Great info in the linked thread from cyccomute.

Cheers
BiggFred is offline  
Old 03-01-22, 01:18 PM
  #6  
I'm good to go!
 
Iride01's Avatar
 
Join Date: Jul 2017
Location: Mississippi
Posts: 14,984

Bikes: Tarmac Disc Comp Di2 - 2020

Mentioned: 51 Post(s)
Tagged: 0 Thread(s)
Quoted: 6190 Post(s)
Liked 4,806 Times in 3,315 Posts
If you look for the exact part number that is printed somewhere on your Shimano products, then we all will be better able to tell you something. Shimano makes compatibility charts for their products. But that only is for intermixing Shimano stuff.

If the bike has Shimano STI's then pull up the rubber covers and the part number will be embossed on the body somewhere. For DRs it'll be on on the backside of them. On the outside of the inner cage plate for the front DR and the backside of the parallelogram or pivot assembly. Sometimes difficult to see when installed, but not impossible with good light, good eyes and maybe a good camera you can zoom in with.

For disc brakes look near the frame or fork mount on the inside of the caliper body.
Iride01 is offline  
Old 03-04-22, 04:28 AM
  #7  
Senior Member
 
Join Date: Jun 2002
Location: San Jose, CA
Posts: 3,691

Bikes: Too many bikes, too little time to ride

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 430 Post(s)
Liked 460 Times in 318 Posts
Regarding the shifting, it seems that I can use any Shimano compatible shifter that has a 2 x 9.
The brake lever question has been answered.
This is the part I'd be worried about, as Shimano road and mountain groups aren't exactly 100% interchangeable, so you'll be safer going with a dedicated flat bar road shifter setup. Otherwise, if you use MTB shifters, the front shifter/derailleur combination in particular could give problems.
tFUnK is offline  
Old 03-04-22, 08:17 AM
  #8  
Advanced Slacker
 
Kapusta's Avatar
 
Join Date: Feb 2017
Posts: 6,210

Bikes: Soma Fog Cutter, Surly Wednesday, Canfielld Tilt

Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2762 Post(s)
Liked 2,537 Times in 1,433 Posts
Regarding brakes: like others have said, you calipers need short pull levers, AKA canti levers. Don’t use v-brake levers, as those are long pull. I am highly dubious of any lever that claims it does both unless they have an extremely large about of lever pull adjustment.

Regarding shifting:

Any Shimano 9 speed shifter will work with your 9 speed rear derailleur: Road MTB, or “flat bar road”. Any will work.

The front is a different story, as Road and MTB use different shifters. For this reason, you want to look for a shifter made for “Flat Bar Road”.
Kapusta is offline  
Likes For Kapusta:

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



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

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.