So I'm installing e-brake cutoffs on both
brakes on my bikes. Why? Well, my one e-brake recently saved my bacon
and I decided it's not too much to ask to have safety at my fingertips on both sides of the bike. I'm close to implementing a solution
on my folding bike.
For this bike, I have hydraulic brakes on both sides. Magura Gustav's - top of the line brakes, but purchased used. I thought I'd be clever and splice the e-brake switch into my spare
rear brake (the bike's front brake already has the e-brake cutoff installed). This way I'd have an operational bike until the work was done and tested. But the thing is - it's sometimes hard to tell (for me at least) if there's air in the brake lines when the brake is not actually installed. I thought I had it all sewn up, so I de-installed my operational rear brake, and as a shortcut I drained the brake fluid and removed the handle... this made sense the way I had the line routed. This also meant that no matter what, I was depending on a proper bleed if I want any rear wheel stopping power.
Over the following 3 days I must have bled the system a dozen times. What's that they say - the definition of insanity is doing the same thing over and over and expecting a different result? Yeah, I've proven I'm insane. I've done everything, including swapping the known good brake handle and calipers from the original brakes onto the bike. In doing so I noticed the "O" ring on the banjo bolt looks a little sketchy... so hell, I've got a bag of 10 on order now and bunch of brake line olives too. I really
want this bike on the road for the 4th of July weekend, and riding mountain roads with a neutered rear brake
is not an option.
Wish me luck guys. I've studied the bleed procedure, I'm certain I'm doing it right. It's gotta be a bad part somewhere in the system letting air get in. Daaaaaaaam.
: For my own convenience, I'm linking the guide to bleeding Magura Gustav's
I've been following. I'm presently out of town, so my next run at properly bleeding the rear brake will be Monday night.