Whatever the problem, squeeling, fade, too much lever travel, too little lever travel, etc., someone will suggest bleeding the brakes.
Is it just urban folklore, or is there some science behind it ?
If there's air in the system, they need bleeding, if there isn't, they don't. Or have I missed something.
My Land Rover's 23 years old. I think I've bled the brakes twice, each time only after replacing pipes or hoses.
I've worked on trucks with 16 gears doing 70 000 miles a year. That's a lot of clutch pedal presses, yet they never need bleeding.
What's different about mountain bikes ?