up side down?

[opticals]

Sorry. I know this have been gone thru countless time.
How do you guy change your tube when face a flat on the trail?
I read somewhere that you should never flip your bike up side down with Hyro disk brake but guess not everyone carry a repair stand on the trail?

????

[Dan Gerous]

I flip mine, not very problematic unless there is already air trapped in the system. If the lever feel weird, just pump the brake a little while gently hitting the caliper, hose and lever to make any air bubble come up. After a few months, my rear brake lever went almost all the way to the handlebar until the brake clamped the rotor. When I checked the brake, I noticed the pad was dead, no counpound left so I need to replace/reset the thing anyway...

It could be worse on some brakes. I have Shimano XT 2004 but I heard Magura Martas were more sensible to that kind of things.

[fsrxc]

Sorry. I know this have been gone thru countless time.
How do you guy change your tube when face a flat on the trail?
I read somewhere that you should never flip your bike up side down with Hyro disk brake but guess not everyone carry a repair stand on the trail?

????

I've heard some brakes can get air into the lines *if the lever is squeezed* when they're upside down, as many designs have *some* air in the reservoir (probably not Hayes). You should be ok if you don't touch the levers. I don't flip my bike downside-up after removing one wheel though, just lean it against a tree or whatever.