View Full Version : Guidonnet Brake levers

12-14-2011, 09:16 AM
I came across these Dia Compe Guidonnet Brake Levers
(http://store.velo-orange.com/index.php/components/brakes/levers/br-0024.html) via gearinches.com (http://gearinches.com/blog/misc/dia-compe-dc139-brake-lever) and I'm curious about putting them on some bullhorn handlebars.




See also lovely bicycle (http://lovelybike.blogspot.com/2010/08/handlebar-hoopla-what-now.html) for these brakes in action on "Dutch" handlebars.

The problem is, the brake clamp diameter is either 22.2mm or 23.8mm, and most bullhorn handlebars clamp size 25.8mm. Or at least, that's the size I've got. I did find the Soma URBAN PURSUIT 25.4 BAR (http://www.somafab.com/archives/product/urban-pursuit-handlebar) which is a bit thinner.

So, two questions:

1) Any opinions on these levers? I like the look, but I'm afraid they'll be uncomfortable to clamp down on, in any hand position, as the levers are a reasonable distance from the handlebar.

2) How could I fit these on some bullhorn handlebars? Clearly it's been done, as seen in the one pic above.

12-14-2011, 04:54 PM
You're sure? The center part of the handlebar bulges to 25.8 or 26 or 31.8 mm and is clamped to the stem, but the rest of the bar should be 23.8 mm, which is the usual road lever size. (22.2 mm is the standard MTB bar size.) On the two lower pictures with the Thomson stem, you can clearly see where the bar is sleeved.

12-15-2011, 01:10 PM
You should be able to find an old set of DiaCompe brake levers on eBay with clamps that will fit a standard bullhorn. The clamp is just held to the lever with one nut inside the lever. Swap the clamp and nut and you'll be good to go. If you can't find something, I might have a set in the shop that I can cannibalize.