Hayes HFX 9 HD Disc Brake System

3.41/5 (167 Reviews)
MSRP : $82.00

Product Description

Let's face it -- accidents happen, especially on the mountain. And if you're running any of the Hayes HFX 9 series brakes, we've got you covered if a lever blade goes bye-bye. The Hayes HFX 9 Lever Blade is your savior from purchasing a whole new lever assembly in the case of catastrophe. The blade is forged from aluminum, and as we're sure you know, provides predictable modulation and dependable braking power.The Hayes HFX 9 Lever Blade is only a replacement blade for the Hayes HFX 9 series. It is available in one size and in the color Silver.

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Reviews 1 - 15 (167 Reviews Total) | Next 15

User Reviews

Overall Rating:1
Value Rating:1
Submitted by rudy

Date Reviewed: June 28, 2013

Strengths:    Good stopping power after bedding in.
Good modulation.

Weaknesses:    Pistons get stuck therefore you get Rotor Rubbing noises.
Needs periodic "bleeding" to fix this problem.
Bleeding procedure is messy tedious

Bottom Line:   
I like components which give little trouble.
The Hayes brakes are not these.
Every since I got these brakes on my bike they have always rubbed on the front rotor.
If I bleed the brakes they get a little better.
I'm tired of this . Going to ditch them for some Avid BB7s

Overall Rating:1
Value Rating:3
Submitted by Angelo IH a Downhiller

Date Reviewed: September 10, 2012

Strengths:    what strengths? i seriously doubt if its meant for DH.

Weaknesses:    1. Pistons can stuck when the time comes to rebuild it
2. Under real pressure it leaks from EVERYWHERE and i do mean EVERYWHERE
3. The bleeding tap was a stupid idea from Hayes it can be blown and the tap base on the lever can easily be torn on a crash
4. NO adjustments other than the one with the alen screw behind and under the lever which is ->
5. the most stupid place to put the only adjustment on these brakes because a portable alen key just wont fully rotate
6. NO modulation, NO feeling and NO feedback. you either hit them hard to stop or learn how to ride without them
7. no matter how pro you are at brakes..you could be working at Hayes factory you will NEVER bleed them properly first off
8. Hayes pads suck at everything...they dont last and they make a lot of noise.
9. Brake pads are ridiculously expensive
i could be going on and on so read the review

Bottom Line:   
I got these for my first bike which was an plain mtb not a DH about 3 years ago and boy they were great. awesome stopping power. Then i changed my game and got a used iron horse yakuza frame and put all the stuff on it.

After 2 years, 3 rotors (oh how they bend), a new lever adjustment screw(which was stuck and the hex was worn), a broken piston (after it got stuck) and 3 blown bleeding taps and a rebuild in a master cylinder.... i switched to stroker ace.

These brakes are NOT for DH... seriously... if you find your self in a tough spot like going down fast on rocky places and you need to press for hard brake (remember no modulation) after a while the caliber actually leaks from the where the two caliber parts join together, not to mention the bleeding tap on the caliber which bleeds for no reason.

The bleeding tap on the lever is the most stupid idea i have ever seen on brakes, it feels like pin the donkey game... there is NO screw you just have to tap a plastic pin in a rubber part on the lever the same way you would tap the cork on a wine bottle (wtf hayes?). When you need to bleed you just pull the tap off... with your fingernail.....

The adjustment for the lever height is under the lever, which makes the adjustment a pain in the a** if you are looking for a fine tuning, and remember the pads run out fast on these brakes. Also if it happens for the lube behind the screw and inside the master cylinder to wear off, just go ahead and rebuild (which means more bleeding) dont force the alen key inside the screw or you will have to get a new screw as well.

NO modulation, NO feeling and NO feedback 'nough said.

For anyone who is interested: i tried them all.. the Goodridge sintered pads are the best. they last three times as long and they dont make much noise.

If you are looking for good brakes for anything else than DH/FR and harsh conditions in general buy these, if not well its a waste of time every time you rebuild, rebleed and waste of money for the rotors, the brake fluid and the brake pads. I would recommend these to someone who would get them used in good condition for light riding. At least they seem to be working better than elixir under rain and mud.

I had to upgrade to the ace's to finally get amazing braking power, I actually brake less and i finally understand what it means to modulate and why it is so important.

No disrespect to Hayes they make pretty good brakes its just that the HFX9HD is not one of them.

Expand full review >>

Duration Product Used:   2 years

Price Paid:    $200.00

Similar Products Used:   Elixir, Formula One

Bike Setup:   Morewood Izimu, Boxxer RC, Stroker Ace,

Overall Rating:3
Value Rating:4
Submitted by chuckbuck a Weekend Warrior from Sacramento CA

Date Reviewed: February 13, 2012

Strengths:    The bike stops when you want it to. What more is it supposed to do?

Weaknesses:    The rotors warp easily and drag on the caliper/pads

Bottom Line:   
If the rotors didn't warp they would be great. I would say that they are certainly powerful enough, modulation is good, I think it gets better as the years go by and they break in more and more. They have never failed me. They are older and newer stuff like Codes and XT's obviously outperform the Hayes 9, but for how long they lasted me with only a warped set of rotors which is easily replaced I think they're pretty good. No need to replace them until they fail you, which in my experience isn't likely.

Expand full review >>

Favorite Trail:   American River Bike Trail

Duration Product Used:   2 Years

Price Paid:    $100.00

Purchased At:   came on bike

Similar Products Used:   Hayes mechanical (not so good) Shimano XT (Excellent)

Bike Setup:   2006 BIGHIT truvativ hussefelt, holy roller front nevegal rear, Marzzochi EXR Pro.

Overall Rating:3
Value Rating:2
Submitted by Nasty610 a Weekend Warrior from Fayetteville, NC USA

Date Reviewed: October 5, 2011

Strengths:    Pretty good power and decent modulation

Weaknesses:    They are bit on/off when under heavy braking load

Bottom Line:   
For years these brakes were the standard in downhill and freeride. I don't understand how. They are decent brakes but lack true stopping power and modulation. I took these off my wifes bike because she complained they pulsed and release while going downhill. I didn't believe her but once they were on my bike they did the same thing. I've gotten use to them but they don't have the power of my Magura Julies or my Shimano LX's. I would only recommend these if they were on a very discounted sale or were on the bike when I got it. Either way I would replace them with a set of Julies once I got the $90/wheel jensonusa.com wants for them. The fact that these brakes routinely go for 100-150 per wheel baffles me. These brakes haven't failed me yet but I wouldn't feel confident taking them to a downhill run.

Expand full review >>

Duration Product Used:   More than 3 years

Purchased At:   Taken off another bi

Similar Products Used:   Shimano LX, Hayes Mechanical, Sram Code, Magura Julie

Bike Setup:   '06 Giant Reign 1 Fox 36 fork, full XT 10 spd drivetrain and Atomlab Pimp wheelset

Overall Rating:1
Value Rating:1
Submitted by intenseuzzi a Cross Country Rider from Farmington, Ut, USA

Date Reviewed: August 12, 2011

Strengths:    None

Weaknesses:    poor heat disapation, break easy.

Bottom Line:   
While coming down a mountain trail I laid down my bike at around 2mph in a very tight switch back the crash was certainly nothing to write home about. When I got up and tried to proceed down the single track I noticed that I had lost all power in the front brake. Further inspection reveled that the small plastic bleed stopper had somehow disappeared in the crash. I checked the lever and there was no damage but yet the master cylinder was leaking profusely on the ground. I still can’t figure out how the brake bleed plug fell out it is beyond me how it could have come out but none the less there I was with hydraulic fluid running all over the ground!

Ok. . I thought I can get the part and replace it, rebleed the brake and the brakes will be back in working order again. WRONG!!!!! the brakes are damn near impossible to bleed clean of air unless you buy the Hayes special bleed kit!!!! That in and of it’s self was enough to scrap the brakes!
So I buy the bleed kit and insert the bleed adapter into the rubber bleed hole and bleed the brakes as directed in the instructions. After I was finished I went to pull out the bleed adapter and wouldn’t you know it the adapter tears out the rubber part that it inserts into!!!!!! So now their is no way to seal up the hydraulic fluid!!!!! FU#%!!!!!

Can you say pissed as Hell!!!! What a piece of SH##.
NICE ONE HAYES YOU LOST A COSTUMER FOR LIFE WITH YOUR CHEEP SH*$. I have vowed to never buy another Hayes brake in my life!!!
The reason I gave these brakes only one star was because they look like brakes! Don’t waist your money!!!!

Expand full review >>

Favorite Trail:   North Fork

Duration Product Used:   3 months

Price Paid:    $49.00

Similar Products Used:   Hope, Magura

Overall Rating:2
Value Rating:1
Submitted by Bungholio a Cross Country Rider from Seattle, WA, USA

Date Reviewed: July 28, 2011

Strengths:    They have slowed my bike down for a couple of years. As with most disc brake systems they work relatively well in wet or muddy conditions.

Weaknesses:    They constantly are rubbing and squeaking and need re-adjustment. As of lately my rear brake line has leaked, was repaired and bled and then needed bleeding again after a week, and now needs it again. I bought the Hayes Pro bleed kit thinking that it would be more economical since this is turning into a chronic problem, but the process seemed very complicated and the included directions were unclear and the illustrations a joke that made it more like a guessing game. I returned the kit for a refund and will be looking at new brakes. Maybe other brands are just as hard to do maintenance on, but I'm reasonably mechanically inclined and these are a PIA. I have had it with Hayes!

Bottom Line:   
I wouldn't recommend these brakes. After trying to mitigate the problems with another Hayes product, their bleed kit, I think I'm just about done with them.

Expand full review >>

Favorite Trail:   Methow Valley trails

Duration Product Used:   2 Years

Price Paid:    $140.00

Purchased At:   ebay

Similar Products Used:   Avid cable disc (forget the model), V-brakes

Bike Setup:   Santa Cruz Superlight with some upgraded stuff.

Overall Rating:5
Value Rating:5
Submitted by Twisted1 a Downhiller from Seattle washington USA

Date Reviewed: June 5, 2011

Strengths:    Stopping power, looks, big rotors, no maintenance

Weaknesses:    Hard to fill/bleed, no settings

Bottom Line:   
Great bang for your buck brake! The only "pita" is when you go to change fluid or bleed them. The knob on the caliper is actually where you fill it, and the plug at the top on the levers is the bleed hole. I changed my fluid in mine today and took me about 5 mins to do the job.
It makes me sick to read bad reviews on great products that people do on this site. Most people writing bad reviews are kids or really don't know how to use the product so things go bad.

Bottom line..... Buy them and ride them for years and be worry free!

Expand full review >>

Favorite Trail:   Whistler

Duration Product Used:   2 Years

Overall Rating:4
Value Rating:5
Submitted by sportsdude94 a Weekend Warrior from pitt meadows bc

Date Reviewed: September 6, 2010

Strengths:    consitant, power in all weather, pads and rotors wear slowly

Weaknesses:    very grabby, and heavy rotor

Bottom Line:   
if you like speed these brakes are for u....but when u first get them, be carful and get use to the sencitivity of the brakes

Expand full review >>

Favorite Trail:   toadstool

Duration Product Used:   More than 3 years

Purchased At:   whistler

Similar Products Used:   none

Bike Setup:   8 inch rotor back and front

Overall Rating:4
Value Rating:5
Submitted by Miki a Cross Country Rider from Belfast

Date Reviewed: July 21, 2010

Strengths:    Strong braking. Good in wet. Easy to adjust and set up.

Weaknesses:    None?yet.
Bit of squeal with new pads. Kink in rear hose.

Bottom Line:   
Had these on my "Downhill" bike and was pretty happy with them. Came up on the second hand market with 160mm rotors so bought them for my XC bike. Great stopping power and pretty lightweight. Takes a few rides to get them dialled in. Probably much better for xc/ all mountain riding with a good set of rotors.

Expand full review >>

Favorite Trail:   Castlewellan, Co. Down

Duration Product Used:   Less than 1 month

Price Paid:    $45.00

Purchased At:   Second hand.

Similar Products Used:   Hope mini, Giant MPH

Bike Setup:   Giant XTC- with 160mm Ashima rotors.
Giant AC- with 8inch Hayes rotors.

Overall Rating:5
Value Rating:5
Submitted by BIGHaroHucker a Downhiller from Salt Lake City, UT

Date Reviewed: June 21, 2010

Strengths:    Good brakes for a very long time. I just upgraded to Hayes Stroker Aces, but these were strong and worked great for a very long time for me.

Weaknesses:    Lever pops out if you wreck wrong and you have to replace the washer in the master cylinder/lever housing.

Bottom Line:   
These were great brakes for a long time. Only had the handle come out once, during a hard wreck. I had wrecked plenty of other times and not had issue, so I would say that this was a "freak accident". They were strong and reliable, good modulation. There are better brakes out there now, but I am going to give them a 5/5 because they are very good for the price. Usually you can find good deals on them used.

Expand full review >>

Favorite Trail:   Bobsled

Duration Product Used:   2 Years

Price Paid:    $149.00

Purchased At:   LBS

Similar Products Used:   Hayes Sole, Hayes Stroker Ace

Bike Setup:   2007 Haro X7, 2006 Marzocchi 888RC, 2009 Fox DHX 5.0, SDG I-Sky Seat, 2010 Hayes Stroker Ace

Overall Rating:1
Value Rating:3
Submitted by charlesparps a Downhiller from slc ut usa

Date Reviewed: June 25, 2009

Strengths:    good stopping power when they work

Weaknesses:    break easy, I have had 2 set sof these, broke the washer when my lever was forced out too far by a fall; $20 to get the washer to fix it, what a joke. My first set leaked, I should have bailed onHayes, but...On my brand new pair 3 mo of riding and they are in the shop to be bled, I really do not recommend these

Bottom Line:   
get shimano or hope, or blow the $250 you saved with Hayes in the shop fixing your Hayes.

Expand full review >>

Favorite Trail:   lcc

Duration Product Used:   1 Year

Price Paid:    $250.00

Purchased At:   ebay

Similar Products Used:   many

Bike Setup:   M1 w/ bombers

Overall Rating:1
Value Rating:3
Submitted by Tater salad a Downhiller from San Francisco, California

Date Reviewed: May 29, 2009

Strengths:    Never have leaked. strong if you really crank them,

Weaknesses:    rotors are VERY easily warped, not very grippy, unpredictable, terrible heat dissipation. Completely impossible to adjust, always fussing and squeaking and rubbing and b$#%ing and whining.

Bottom Line:   
Absolute RUBBISH. Simply cannot stand up to heavy use... heated up to the point where i had to put ice cubes on the calipers to cool them down. i cannot adjust them, and im German... very flimsy rotors; they bend at the drop of a hat. i hate these brakes

Expand full review >>

Favorite Trail:   Earth

Duration Product Used:   1 Year

Purchased At:   Pierce Osgood

Similar Products Used:   Plenty

Bike Setup:   Ironhorse sgs Expert-switching over to Marin B-17

Overall Rating:1
Value Rating:3
Submitted by egsavio a Downhiller from Florianópolis

Date Reviewed: November 8, 2008

Strengths:    Good power stop while new.

Weaknesses:    It leaks in the plastic cover of the oil reservoir.

Bottom Line:   
I made other review 2 years ago, than I wouldn't never buy these brakes, but they come in my new bike...
Again, it is a trash. I almost had a serious injury. I never more will use this sh*%&&t again.

Take Deore, it is afordable and maintenance free.

Expand full review >>

Favorite Trail:   Barba Park

Duration Product Used:   1 Year

Purchased At:   Della Bikes

Similar Products Used:   Grimeca, Deore, Hope.

Bike Setup:   UMF Freddy, Saint, Totem.

Overall Rating:3
Value Rating:4
Submitted by SLAZMO a Weekend Warrior from Gold Coast - Australia

Date Reviewed: October 29, 2008

Strengths:    Solid bombproof design, easy servicability and lots of aftermarket non OEM parts available....

Weaknesses:    Expensive aftermarket parts (OEM).... Pads are pricy compared to current modles and rubber diafram breaks easily, shotty hayes tubing, Goodrige or Hope cables the way to go when getting a set....

Bottom Line:   
There a good set of anchors, modulation is the key and a spare set of pads a must when out. There isnt much adjustability in their design and this shows with squeel and shuddering when not properly setup.... Lots of time setting them up!!!! needs to be kept clean and serviced for best performance and when they work they sure as well do!!! Good value for money in todays terms. But would possibly stay with Avid due to their weight savings and blingy attractivness....

Expand full review >>

Favorite Trail:   Narang

Duration Product Used:   2 Years

Purchased At:   Came with bike HFX 9

Similar Products Used:   Avid 3/ 5/ 7's

Bike Setup:   S/S Street & Heavy XC & All Mountain & Shore FR

Overall Rating:2
Value Rating:3
Submitted by colesie a Downhiller from surrey

Date Reviewed: July 22, 2008

Strengths:    good for the first two weeks

Weaknesses:    crap after the first two weeks, at first they were reasonable, started loosing power so i bled them, they just got worse and worse, no stregnth, poor reliablity

Bottom Line:   
do not buy them

Expand full review >>

Favorite Trail:   coopers

Duration Product Used:   2 Years

Purchased At:   came on bike

Similar Products Used:   avid juicy, mono mini

Bike Setup:   kona howler

Reviews 1 - 15 (167 Reviews Total) | Next 15

Review Options:  Sorted by Latest Review | Sort by Best Rating

Hayes HFX 9 XC vs MAG vs HD

What are the differences in these variations of the HFX 9 brake line? I have seen... Hayes HFX 9 HD Disc Hayes HFX 9 XC Disc Hayes HFX Mag Disc The XC offers V6 or V8 rotors so i dont think its as simple as rotor size....Read More »

El Camino or HFX 9 HD

Hey everyone. Im stuck between the el camino and the hfx 9 hd. ive looked up the reviews on this site and the hfx seems to rate higher but people have been saying problems with fade and modulation on the HFX. in a brake im only looking for decent modulation and control...my longest decent wil ... Read More »

Hayes 9 HFX HD - Piston Out Too Far?

I am currently using Hayes 9 HFX HD's, and accidentally pulled the rear brake leaver when the rear wheel was off. My piston in the Hayes 9's rear brake are now pushed in. I have tried to push them back with a spanner, however they spring back as soon as I touch the leaver. My problem is they now rub ... Read More »

hfx 9 hd problem

First, its not really a problem because my brakes work fine and are quite powerful, but it is starting to get really annoying. I have hayes hfx 9 hd brakes on my bike and whenever i ride it, they make metallic rattling sound. It is a loud sound and is loudest when i make fast and usually sharp turn ... Read More »

Does my HFX-9 HD need to be rebuilt?

So I'm having some trouble aligning my calipers on the rotor. When I took them off, I noticed that my calipers have the notorious "dominant piston" problem. After doing some searching here, I cleaned up the pistons as best I could by holding the "dominant" piston back and pumping the brakes to push ... Read More »

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