Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  

Go Back   > >

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.

User Tag List

Thread Tools Search this Thread
Old 02-25-11, 09:11 AM   #1
Senior Member
Thread Starter
maggiemaggie's Avatar
Join Date: Jan 2011
Location: NYC
Bikes: '73 Raleigh Super Course
Posts: 65
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Inverse brake lever installation- help!

So I recently installed Dia Compe inverse brake levers (22.2mm) on my VO Montmartre handlebars (also 22.2mm). Now that I've routed the cables and hooked up the brakes, if I pull the brake lever, the entire thing starts pulling away from the end of the handlebar and the lever goes slack. I think it is because the mechanism does not fit inside the handlebar snugly enough.

My question is: why is it doing this even though the sizing is correct, and is there any way to make the fit tighter? I've wound the nut down on the bolt as far as I can using my own strength and am about at my wit's end!
maggiemaggie is offline   Reply With Quote
Old 02-25-11, 11:20 AM   #2
Certified Bike Brat
Burton's Avatar
Join Date: Jan 2011
Location: Montreal, Quebec
Posts: 4,251
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
I think it might help if you gave more details

Some specifics in your installation procedure in particular would help.

The bars and levers are definately compatible sizewise, but normally I`d expect to tighten a screw after installing the expansion plug.

You mention tightening a nut and still not ending up with enough retention force. Are you attempting to adjust the fit of these BEFORE inserting them in the barends - or AFTER fitting them in the barendss?
Burton is offline   Reply With Quote
Old 02-25-11, 11:59 AM   #3
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Posts: 35,300
Mentioned: 105 Post(s)
Tagged: 1 Thread(s)
Quoted: 3645 Post(s)
The lever plug that fits the bar is expandable. Did you tighten it properly? This is usually done with the cable off, some brands also require that you take the lever out of the body for access to the center bolt.
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline   Reply With Quote
Old 02-25-11, 01:28 PM   #4
fietsbob's Avatar
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 8
Posts: 28,552
Mentioned: 63 Post(s)
Tagged: 0 Thread(s)
Quoted: 3013 Post(s)
If ID of end of bar is so large that the expansion bolt bottoms out,
before it expands the attached part within the handle bar tube,
then you can shim the inside of the bar tube
till it's small enough to grip within the tube before the screw bottoms out,
trying to expand within the new smaller ID of the shim, inside the larger tube..
fietsbob is offline   Reply With Quote
Old 02-25-11, 02:10 PM   #5
Senior Member
cyclist2000's Avatar
Join Date: Sep 2009
Location: Up
Bikes: Masi (retired), Giant TCR, Eisentraut, Jamis Aurora Elite, Zullo (trainer bike), Cannondale, 84 Stumpjumper, Waterford, Tern D8, Bianchi, Gunner Roadie, looking for a Ti frame and Brompton M6R
Posts: 3,365
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 65 Post(s)
did you use a ferrule on the end of the housing that goes into the brake lever?
cyclist2000 is offline   Reply With Quote
Old 02-25-11, 02:15 PM   #6
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
Hi Maggie:

I just tried the 22.2mm version of the D/C inverse levers on a 22.2mm Montmarte handlebar. It works just fine. Can you take some photos of the part of the lever that fits into the end of the bar? Maybe there's a part missing or something.
  Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

All times are GMT -6. The time now is 04:33 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    get answers from real people!
Click to start entering your question.