Tuesday, June 30, 2009

Brake Mod

I had this handbrake on the 'Evermate' which is my retrodirect/SS/Fixed bad weather grocery bike. It usually features my front rack for groceries and hauling, but sometimes I do throw other bars on. Swapping the brake from one set of bars to the next became a pain pretty quickly, so I decided to modify the way the lever attaches to the bars to make it easily removable.

This is the original setup. The brake lever has a metal loop that slides over the bars and threads onto a screw which can be tightened from the front of the lever and thus pulls the loop into the body of the lever and tightens it to the bars. I wanted to move to something that would separate at the back. I am aware that such levers are available for purchase, but that is not what this is about... at all.

The first thing I did was to remove the loop so I could replace it with something that could separate.

The obvious replacement for the loop was a small hose clamp. I bent it to match the shape of the loop with a protrusion that would insert into the body of the brake lever. At the end of this protrusion, I drilled a hole to accomidate the tightening screw and rectangular nut that would serve to draw the hose clamp into the body of the lever and thus tighten against the bars.

This view shows the hose clamp installed into the brake lever. I got this part tightened all the way down until the protrusion was totally inserted into the complementary shape in the lever body and what remained was rounded to contour the bars.


The final step is to wrap it around whatever bars (or top tube) I choose and snug down the hose clamp. This makes it much easier to swap out the handlebars (one of my favorite pastimes).

1 comment:

  1. ok. But that does introduce a sharp bump on the bottom of the bar that might gouge you knee in a crash.

    ReplyDelete