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Results tagged with hydraulic-disc-brake
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user 5433
Hydraulic disc brakes use fluid (either mineral oil or automotive brake fluid) to transmit brake pressure from the handlebar levers to the disc brakes on the wheel.
2
votes
odd noise on new disc brakes
Is there any loss of braking power associated with the noise? Does it feel that the brakes aren't working fast enough? Brakes do make a similar sound when water gets on the rotor for no loss of power. …
- 8,867
3
votes
2
answers
6k
views
Air in hydraulic brakes after bleed
Today I bled an Avid Elixir 1 after it had gone soft over the winter. I followed the directions in the Park Tools Big Blue Book completely, used an Avid bleed kit and opened a new bottle of DOT 5.1. T …
- 8,867
6
votes
What is the difference in procedures for bleeding different disc brakes?
It's necessary to understand the design of the systems to understand why Avid requires a separate bleed kit.
There is a significant difference in the design of the brake system between Avid and othe …
- 8,867
3
votes
Accepted
Slow lever return after shortening brake line and bleeding
There are three possible things that could be causing this:
Too little mineral oil remaining in the system, did you top up the brakes after shortening them?. This would create a vacuum in the system …
- 8,867
10
votes
Accepted
Hydraulic Disk brake piston not fully retracting
I would try repairing them before binning them and purchasing the Shimano upgrade. If there is no obvious fluid leak around the piston the seals are likely in good order and you've got a sticky piston …
- 8,867
28
votes
Why did the hydraulic disc brake stop working when riding down a steep mountain?
What you experienced was brake fade. There are two reasons why it happens:
The fluid inside the brake boils releasing gas into the system which makes the brakes feel spongy and then non-existant.
T …
- 8,867
9
votes
Accepted
How do I tell the size of my braking discs?
The disc that you are talking about is in fact called the rotor.
Rotor size is measured by diameter, ie. edge to edge through the centre. The size may also be etched on to the rotor which would be mo …
- 8,867
4
votes
How hard is it to get hydraulic disc brakes “tuned” well?
It's reasonable to expect a hydraulic brake to feel brand new after being serviced by a "professional". In my personal experience, an LBS should have the skills and experience to bleed a brake to feel …
- 8,867
2
votes
Accepted
Will any Avid brake bleed kit work with my Promax brakes?
The only specific piece that you need to worry about is the threaded hose fitting that screws the tube from the syringe into the reservior port, everything else is identical.
Unfortunately I believe …
- 8,867
9
votes
3
answers
34k
views
What is the benefit of a larger disc rotor?
What real benefit does having a larger rotor give to braking performance?
Additionally is my assumption correct that you callipers don't actually change in size, just the rotor and the adapter need t …
- 8,867
5
votes
Accepted
Disc brake maintenance
There are a number of simple things you can do to try improve performance before replacing the brake pads.
Check the pads to see how worn they are. Here is an example of a new and worn pad requiring …
- 8,867