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35 votes
1 answer
153k views

What is the difference between I.S., post, and flat mount disc brake mounting standards?

What is the difference between "I.S." (international standard), "P.M." (post mount), and flat mount disc brake mounting standards? Does one have a clear advantage over the other and is there a ...
RoboKaren's user avatar
  • 29.3k
21 votes
2 answers
251k views

Converting bike from rim brakes to disc brakes

I just bought a used 2009 Kona Dew and it comes with regular rim brakes. I'm perfectly happy with them so far, but have been wondering if disc brakes would come handy when it rains. What is involved ...
Soo Wei Tan's user avatar
5 votes
1 answer
5k views

How do I get rid of the noise on my Hayes Stroker Trail brakes

I recently bought a new bike that came with Hayes Stroker Trail hydraulic brakes. From day one they were squeeky and not very grippy. I wrote it off to the burn in period that most disc brakes ...
Bizee Biker's user avatar
21 votes
8 answers
63k views

Why do my disc brakes squeal when wet?

Picture the scene... It's just been raining and you are getting ready to commute home after work, you cycle out on to the tarmac, the scent of fresh rain on hot tarmac fills your nostrils, you notice ...
Wez's user avatar
  • 988
8 votes
2 answers
17k views

Disc brake break-in?

Just got a bike with discs (BB7). The feel of the braking is so-so on the first ride (5km commute from LBS to home). I think the cable for the rear needs a little tightening. But even so, I don't ...
Nic's user avatar
  • 704
58 votes
18 answers
58k views

What is the practical advantage of disk brakes over rim brakes?

Disk brakes are becomming more popular on bikes now, and I was just wondering what the advantage is of this type of brake over the older rim brakes.
Connor W's user avatar
  • 683
26 votes
1 answer
40k views

What is the difference between different types of disc brake pads

I've seen several different descriptors for disc brake pads: Metallic, Semi-Metallic, and Organic. What is the difference between these types of disc brake pads?
Benzo's user avatar
  • 18.3k
12 votes
4 answers
14k views

Disc brakes squeak on Trek mountain bike

I have a Trek 3900 mountain bike with disc brakes, and I just took it out of winter storage to start riding it for the season. Everything works well, except for one very annoying problem: when I stop ...
Nate Koppenhaver's user avatar
7 votes
1 answer
13k 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 ...
davefiddes's user avatar
2 votes
1 answer
895 views

Disc brakes on leader doberman which has no tabs and adaptors

I have a leader doberman with a front disc brake that I want to install on the rear. I know that it hasn't a rear disc brake tab, but I have found an adaptor for the caliper (http://www.ebay.com/itm/...
stavros's user avatar
  • 21
97 votes
16 answers
30k views

Why are disc brakes rare on road bikes? (circa 2010) [closed]

Window shopping for road bikes, I can't see many that have disc brakes. What are the reasons for this?
user155695's user avatar
  • 2,913
25 votes
3 answers
8k views

How do I prevent disk brakes from squeaking in the rain?

When I got my new bike with disk brakes, I thought that they would perform much better in the rain. While this is true, they still squeak quite loud in wet conditions, which is quite annoying. Is ...
Nik Reiman's user avatar
  • 2,075
17 votes
2 answers
8k 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 ...
kristof's user avatar
  • 941
9 votes
2 answers
869 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?
Johan Dahlin's user avatar
  • 2,908
7 votes
2 answers
14k views

Pros and cons of mixed hydraulic/mechanical brakes vs pure hydraulics

Title of question is self-explanatory. Recently, it was added to the market brakes that are an hybrid mix between the mechanical Bowden steel cable and hydraulic system, which their oil tank is near ...
sergiol's user avatar
  • 402

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