2
votes
1answer
102 views

Is it a good idea to sand off the rotor when exchanging disc brake pads?

During operation, disc brake pads cut grooves into the rotor. When replacing the pads with new ones, would it be a good idea to smoothen the rotor with sandpaper(e.g. grit 200 then grit 800)? What is ...
0
votes
1answer
303 views

Are there any suitable alternatives to alcohol/brake cleaner for cleaning brake rotors?

Alcohol and brake cleaner seems to be the recommended options for cleaning disc brake rotors. I don't have any of that available currently, so are there any suiltable alternatives to them that can be ...
4
votes
1answer
168 views

Fixing hydraulic disk brakes, what to check first?

I have a 10-year old bike, fitted with hydraulic disk brakes. The bike has been actively used for around 4 years only though. Recently, my brake levers started to have more and more "play" before the ...
1
vote
0answers
164 views

Can I swap Semi-Metallic brake pads for Sintered Metal Brake Pads?

I'm running disc brakes on my cyclocross bike with semi-metallic brake pads. I find that I'm constantly having to keep my rotors cleaned off to ensure optimal performance. I'm used to my mountain ...
2
votes
4answers
350 views

Disk brake brakes work poorly after annual maintainance

The disk brakes practically don't brake anymore. If I pull the brake lever as hard as I can, the wheel still turns if I push the bike forward. Is this normal? Do they need a "brake in" period? ...
3
votes
1answer
317 views

Disc brake pad and rotor compatibility

The SM-RT53 rotor should be used together with resin pads. If it is used with metal pads, the pads will wear out very rapidly. from Shimano BR M-416 disc brake manual How do I know if a rotor ...
6
votes
4answers
258 views

Concerns with different brake types for the front and the rear wheel

I'm considering adding a disc fork to my surly cross check and using some avid bb7 road brakes for the front. I've got tektro road levers on drop bars (outfitted with retroshift shifters) I've got ...
2
votes
1answer
221 views

Can I get a wheel dished without the bike?

I broke a spoke on my rear wheel, and ended up messing with it a bit too much - I may need to get it re-dished. If it's a common market model bike, can I simply take the wheel into my bike shop, ...
8
votes
4answers
1k views

Separate hex keys vs. combined multi-tool for bike adjustments?

Are separate hex (Allen) keys better than a multi-tool for adjusting and maintaining a bike at home? Some of the separated sets also have ball-ends for the 4/5/6mm keys: Apart from Torx T25 ...
2
votes
1answer
10k views

How to adjust Avid Elixir 1 hydraulic disc brakes?

I have a Trek X-Caliber and the rear disc is rubbing a little. So I want to adjust the brakes so it doesn't rub and make things a bit easier of course. I see many videos about brake adjustment but ...
10
votes
2answers
1k views

Disc Brakes: Resurface your Pads?

Is resurfacing the brake pads in disc brakes (hydraulic or mechanical) necessary? If so, what would you use to do this - medium sandpaper? I spoke to one mechanic while shopping for a bike, who ...
6
votes
2answers
879 views

What is the difference between DOT brake fluids?

I know that the two main categories are the mineral oil (Shimano, Magura) and the DOT type (Avid, Hayes). But what is the difference between the DOT 3, DOT4, DOT 5.1? Which one should I choose for ...
6
votes
1answer
9k views

How do I bleed Avid Elixir brakes

My bike has a set of Avid Elixir R hydraulic brakes. The front brake barely goes on when I pull the lever and the back brake feels pretty soft. I think I need to bleed them. How do I go about doing ...
8
votes
1answer
540 views

How do I change my disc brake pads?

How do I change my disc-brake pads? How do I avoid letting the fluid out?
10
votes
2answers
843 views

When to change disk brake pads

I was wondering how to tell when your disk brake pads need replacing. My front seems to be not stopping as quickly as it used to, or as I would like. I know this could be road grime build up, but I ...
9
votes
2answers
6k views

Hydraulic Disc Brakes Maintenance

I have Hayes Nine hydraulic disc brakes on my mountain bike. I have recently replaced the brake pads and after that it seems that the pads are almost touching the rotor. How can I adjust it? I have ...