A couple years ago when I made the switch to discs, I outfitted my bike with one of the brand new XTR calipers and an Avid Mechanical on back. My reason for this was I like to do long rides, often far removed from civilization and/or my car and didn't want to rip a hose or suffer some failure of my hydraulic brake.
Well I have never had any problems at all with the hydro except the occasional centering issue, until last night....
We were doing a night ride here on the Front Range of CO at a place with really steep, loose terrain. We ride out about 3 or 4 miles and up about 1500 feet and then start our descent. We hit several long rocky and steep sections and the riding just keeps getting better. I started down another section and I'm using my rear brake heavily, but using my front periodically to bleed off some of the speed I am gaining quickly. Mind you it is 10pm at night and dark as can be last night as the moon was nowhere to be seen.
As I start down the section I grab my front brake and it goes all the way to the bar. Naturally I panic a bit and grab the brake again a couple times not believing that it was gone. My initial thought was that I had lost the brake pads (a problem on the XTRs) bouncing through the rocks. I get stopped using the Avid Mech and use my foot Fred Flinstone-style. I shine my light at the brake and see fluid all over the ground. The bolt that holds the hose into the caliper had backed out somehow and my squeezing sent about 3/4 of my fluid to the ground.
I tightened the bolt up, but the brake was pretty much useless. I walked down the steep stuff and then relied on my rear brake and rode the more mellow stuff back to the car.
The funny part about this all is that I was about to replace my Avid Mech with a Juicy since I had virtually no problems ever with hydros. Maybe the Avid with stay on the back a while longer....
Mtbr's 2016 Winter Biking GearReviews and Roundups
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Thread: Old faithful...Avid Mechanical