Hayes Prime Expert Disc Brake

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Hayes Prime Expert Disc Brake

It's here. And it's the first of its kind. PRIME hydraulic disc brakes feature industry-first technologies and offer more power and a better ride. PRIME's tool-free reach and contact adjustment, improved braking torque and feel and outstanding ergonomics are just a few of its many attributes. Plus, its ground-breaking, high-flow reservoir venting system has never been seen before.

  • Tool free stroke adjustment
  • Titaon lever bushings
  • Post mount caliper
  • Includes lever, caliper, hose and fittings - rotor and adapter not included
  • Hose Length Rear 1570; Front 870 front
  • Rotors and adapters sold separately

Don't forget, this brake won't do much without a rotor. If you need new ones, take a look through our selection of brake rotors before you check out!


Model Number

Prime Expert
Brake Type Hydraulic Disc
Intended Use All Mountain
Position Front, Rear
Hose/Cable Length Front: 870mm, Rear: 1570mm
Hose Material Standard
Weight Front: 297g
Rear: 318g
Warranty 2 year Manufacturer's Warranty

Showing Questions 1-2 of 2

Q: Which sides do the front and rear levers mount on?

A: These brakes mount in reverse to a motorcycle. The front is on your left and the rear is on your right. If installed in reverse you pull it off together and you turn it all around.

Q: I have a set of Hayes Nine brakes currently mounted on my bike that I will replace. Can I use the same mounting hardware for the Prime or will I need a new mounting kit. Also, are the brake pads included? Thanks - Brian

A: The Hayes Nine brakes are no longer in production and would use a different standard. When purchasing a new set of brakes the appropriate hardware would also be needed. As for the pads, yes, all brakes come with pads.

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great brakes - May 13, 2015

1 2 3 4 5
5 out of 5 stars

went from some juicys to these, and have not been let down. great stopping power, easy to set up, lever modulation feels great. just a great set of brakes...

0 out of 0 people found this review helpful
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Great power, Better feel - Nov 19, 2014

1 2 3 4 5
5 out of 5 stars
Powell River, BC

They say that brakes are there to let you go faster, and these are a perfect (or prime) example. These brakes have been serving well for eight months so far. They have very even and predictable modulation but more than enough power to break both wheels loose on command. I had set them up initially to be used with either double or single finger braking, but quickly moved them in as one finer is all that is needed. The reach and throw adjustments are very nice features that let one dial in the fit, and balance the feel of the front and rear brake. They are a little heavy for my XC rig but will soon be moving them over to a more AM oriented build. Great brakes that look nice, feel nice, and act nice.

1 out of 1 people found this review helpful
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love it - Oct 14, 2014

1 2 3 4 5
5 out of 5 stars
conway, AR

Smooth. Smooth. Smooth. Ive been running these for about 3 weeks and they have great modulation and lever adjustability. I was in between these and the Shimano XT's and I'm very happy with my choice. Not to mention they just look awesome. Oh and they don't make a sound which kind of threw me off at first but after a couple minutes I fell in love.

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Hayes Primes Rock! - Apr 23, 2014

1 2 3 4 5
5 out of 5 stars

Solid, adjustable brakes Good modulation and excellent stopping power with stock pads Upgrade over the Stroker Trails.

2 out of 2 people found this review helpful
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