Quantcast

comprehensive brake force comparison

frorider

Monkey
Jul 21, 2004
971
20
cali
too lazy to search to see if this was already posted here, but i just read this bikeradar report.

not surprisingly, the 2010 formula The Ones have an oustanding combo of low weight and power.

 

MarkDH

Monkey
Sep 23, 2004
351
0
Scotland
They should do some sort of brake force per £/$, might drop the Formula down a bit. :P Seriously though, some unexpected outcomes in that graph; Codes getting spanked and the performance of the Funn Drop Out which you don't see on too many bikes. Still, theres more to a brake than power though, I'd take a slight drop in power for ease of bleeding etc.
 

jonKranked

Detective Dookie
Nov 10, 2005
88,243
26,543
media blackout
They should do some sort of brake force per £/$, might drop the Formula down a bit. :P Seriously though, some unexpected outcomes in that graph; Codes getting spanked and the performance of the Funn Drop Out which you don't see on too many bikes. Still, theres more to a brake than power though, I'd take a slight drop in power for ease of bleeding etc.
I agree with you, but sometimes it can be overwhelming and confusing to understand when too many variables are evaluated.

would be nice if they showed a bigger graph so you can actually see the findings
:rofl:
 

Inclag

Turbo Monkey
Sep 9, 2001
2,775
459
MA
Honestly, that would be nice if it were a bit more scientific or at least followed the standard test methodology that most people learn in a high school science class.

Briefly looking at some of the results and correlating them to my personal experiences with some of the products leads me to believe that there is some level of consistency with the testing method. At the same time not listing any of the variables, measurement tools, methods, etc... leaves alot of gaps in my mind as far as how genuine the test, results, and conclusions really are since there is no way to constructively peer review the test.

For example, there appears to be an inflection point at ~100N of force for nearly all the brakes, but we are unaware of why this is. This could be an indicator that something is wrong with the test since all of the results appear as though they are linear. Again maybe there isn't, but I would like to know why this is the case, and I would hope that the person conducted the test looked into this as well.

In anycase, it is pretty neat. I'm not at all surprised to see where my Avid Codes landed :)
 

Inclag

Turbo Monkey
Sep 9, 2001
2,775
459
MA
looks like they only had 3 data points (@ 50, 100, 150). just connecting the dots.
Whatever the case, not following or listing any sort of scientific procedure is a good way to lose any credibility in my eyes.
 

IH8Rice

I'm Mr. Negative! I Fail!
Aug 2, 2008
24,524
494
Im over here now
Am I reading that right that the Avid Codes are the weakest brakes you can buy?

Something doesn't seem right there......
yeah, that does seem weird. everyone ive ridden seem to be pretty damn powerful, especially compared to the Elixrs which is somewhat buried in that graph think



Top right corner of the webpage there are thumbnails that open larger pics
you can also hit CTRL and scroll with your mouse wheel too, but having it spaced out a bit more would be nice too
 

frorider

Monkey
Jul 21, 2004
971
20
cali
Still, theres more to a brake than power though, I'd take a slight drop in power for ease of bleeding etc.
thank you captain obvious. ;) of course there are other aspects to consider.

but that doesn't mean it isn't interesting to actually measure things like weight, or braking force.

generally speaking, the german and UK mags try to quantify things like 'fork torsional rigidity' -- these attributes are not difficult to measure in a lab -- while US magazines tend to say things like 'felt moar stiffer' or 'stopped on a dime'.
 

vikingboy

Monkey
Dec 15, 2009
212
2
i dont want to get involved in ins and out of the validity of the data presented but would like to point out the brakes were tested and data collected by an independent brake specialist ....god damn this useless brain of mine cant remember who it was now and cant find the mag either :-(

Anyway - I've got 2010 Ones which rule - end of! :-)
 

jeremy_2640

Monkey
Oct 4, 2007
114
42
Melbourne
Honestly, that would be nice if it were a bit more scientific or at least followed the standard test methodology that most people learn in a high school science class.

Briefly looking at some of the results and correlating them to my personal experiences with some of the products leads me to believe that there is some level of consistency with the testing method. At the same time not listing any of the variables, measurement tools, methods, etc... leaves alot of gaps in my mind as far as how genuine the test, results, and conclusions really are since there is no way to constructively peer review the test.

For example, there appears to be an inflection point at ~100N of force for nearly all the brakes, but we are unaware of why this is. This could be an indicator that something is wrong with the test since all of the results appear as though they are linear. Again maybe there isn't, but I would like to know why this is the case, and I would hope that the person conducted the test looked into this as well.

In anycase, it is pretty neat. I'm not at all surprised to see where my Avid Codes landed :)
Totally agree. No details on how it was performed so pretty useless.
 

leprechaun

Turbo Monkey
Apr 17, 2004
1,009
0
SLC,Ut
The Codes must have gotten oil on the pads from bleeding them eleventeen times.

1/3 of the brakes look spot on (shimano/Formula)

1/3 are straight backward (Avid)

1/3 i are all squished together so i can't see em.
 

William42

fork ways
Jul 31, 2007
4,004
761
looks like shimano saints are the best...

Good thing this is a well validated test that really matches with experience, and its well quantified and documented. Looks like it doesn't matter how extended the braking period is, what heat build up there is, what type of pads are used, or anything stupid like that.

But yah, I'm blown away at how much stronger my saints are then anything else I've ever ridden.
 

zdubyadubya

Turbo Monkey
Apr 13, 2008
1,273
96
Ellicott City, MD
another glaring point that sticks out to me is rotors.

rotor design, thickness, and diameter makes a HUGE difference. If these tests werent conducted on the same rotor, the whole experiment is shot.
 

IH8Rice

I'm Mr. Negative! I Fail!
Aug 2, 2008
24,524
494
Im over here now

Steve M

Turbo Monkey
Mar 3, 2007
1,991
45
Whistler
OK, I found this link which really clears things up. That OP's link was garbage, and I assumed that that was all there was documented pertaining to the test.

http://www.bikeradar.com/gear/article/how-we-test-hydraulic-disc-brakes-24345

Nice little machine they have built there. Would have loved to see the fixture attachment to the actual levers in more detail.
That's actually pretty impressive - but I gotta say there's no way Codes are that gutless, those things do have a fair bit of power. Certainly more than Elixirs.
 

Inclag

Turbo Monkey
Sep 9, 2001
2,775
459
MA
That's actually pretty impressive - but I gotta say there's no way Codes are that gutless, those things do have a fair bit of power. Certainly more than Elixirs.
Possibly, but I would have to say that in my experience with the Code's I have, the testing appears to be spot on. I have a sneaking suspicion that there has to be some sort of sealing, tolerance, or wear type issue with the Mag bodied Codes.

I've never really gutted them, but now that Winter is finally over, I'm going to take a good long hard look into what is causing them to perform so miserably. I know that it isn't the bleeding that is causing issues. I have 10 year old Magura Hydraulic rim brakes that haven't been touched once, and my Codes were a weekly problem all of last year. If I can figure out what is wrong with the design and how to rework them to perform correctly, I'll definitely post it up, because I know I'm not the only person that has had issues with Codes.
 

Sandwich

Pig my fish!
Staff member
May 23, 2002
21,684
6,903
borcester rhymes
it isn't the bleeding that is causing issues. I have 10 year old Magura Hydraulic rim brakes that haven't been touched once, and my Codes were a weekly problem all of last year.
Just a small comment, you probably know this, but don't the Codes use DOT fluid? And therefor, DOT absorbs water while mineral oil does not...so theoretrically Avids need a yearly bleed, maggies need a bleed once....again, theoretrically.

I felt your brakes and they seemed ok, but with little bite. Seemed to be more of a pad/rotor issue than bleed/phantom lever doodlieing.
 

Steve M

Turbo Monkey
Mar 3, 2007
1,991
45
Whistler
Actually that's entirely possible - water is a poor lubricant but it does turn any dust/debris (including dust from the brake pads themselves) into a highly abrasive mixture, hence why your pads get chewed out so quickly whenever you ride in the mud.

Seriously though, Codes are fairly powerful brakes when they're working properly (which might be the critical issue really, they do seem problematic). They're no Saints but they are unquestionably stronger than Elixirs and the like.
 
Last edited:

frorider

Monkey
Jul 21, 2004
971
20
cali
OK, I found this link which really clears things up. That OP's link was garbage, and I assumed that that was all there was documented pertaining to the test.

http://www.bikeradar.com/gear/article/how-we-test-hydraulic-disc-brakes-24345

Nice little machine they have built there. Would have loved to see the fixture attachment to the actual levers in more detail.
thanks, that is a helpful link. i figured they used the mfger's 6 inch rotor (since this test included xc and dh brakes) but nice to see that confirmed, along w/ the other test details.

the table format is more easy to read than the graph:

Dry Brakes data - pull force (N) vs decceleration (m/s²)

System 50N 100N 150N
Formula R1 3.52 6.26 7.37
Formula RX 2.21 4.86 6.42
Formula The One 4.6 7.64 8.69
Funn Drop In 3.44 5.99 6.91
Funn Drop Out 3.6 8.1 8.11
Hope M4 3.2 5.89 7.15
Hope Race 2.15 3.61 4.29
Hope Tech X2 2.44 4.4 6.3
Hope V2 3.53 6.74 8.29
Shimano Deore 3.18 6.25 8.31
Shimano Saint 4.15 7.48 9.22
Shimano SLX 2.84 5.73 7.82
Shimano XT 3 5.34 6.58
Shimano XTR 2.59 4.95 6.01
Avid Code 1.76 3.5 5.94
Avid Elixir CR 3.71 6.04 6.82
Avid Juicy 3.5 2.46 4.69 6.3
Gusset 2.98 5.81 7.39
Hayes Stroker Ace 3.65 6.12 7.48
Magura Julie 2.75 5.22 7.46
Magura Louise 3.65 6.42 7.66
Magura Marta 3.39 5.68 7.03
Quad Dime Pro 3.24 6.05 7.8
Quad Sting Pro 2.73 5.39 7.05
Sram XX 2.93 5.57 8.24
Tektro Auriga 2.8 5.45 7.64
Hayes Stroker Trial 3.41 5.41 6.68
Avid Elixier R 3.52 5.74 6.48
Avid Elixir 5 3.52 5.74 6.48
Hayes Stroker Gram 3.41 5.41 6.68
 

Udi

RM Chief Ornithologist
Mar 14, 2005
4,918
1,213
Not sure if anyone noticed, but the saints won the wet test as well. :)
Formula "the one" was just behind them.

I agree with people who said the codes should have been further up though, I've ridden all three of these brakes and I think the codes are close enough power wise. I suspect something went wrong with the test, or it was a bad batch of brakes (which, knowing avid is entirely possible).
 

William42

fork ways
Jul 31, 2007
4,004
761
Yah, that doesn't match up with my experience with codes, I've had a couple sets now, and while I think the new 810's are unquestionably stronger (and so do the people I ride with) they're definitely stronger then the stroker trails and elixers.
 

buckoW

Turbo Monkey
Mar 1, 2007
3,838
4,877
Champery, Switzerland
Not sure if anyone noticed, but the saints won the wet test as well. :)
Formula "the one" was just behind them.

I agree with people who said the codes should have been further up though, I've ridden all three of these brakes and I think the codes are close enough power wise. I suspect something went wrong with the test, or it was a bad batch of brakes (which, knowing avid is entirely possible).
Hey Udi, didn't you guys have some problems with the Saints when you were here? Most people I know around here liked the Saints in the beginning of the year and then had lots of problems later on and then switched to the Ones.

The Codes are kind of a hit or miss, it seems to me. I think it has to do with the four pistons and tolerances. Some are great and some are terrible.

From my experiences their test seems to be pretty accurate. The local shop here has such a hard time keeping everyone's totally cooked brakes running well. They do a good job but I wouldn't want to deal with so many fried brakes from all the big brands.
 

Steve M

Turbo Monkey
Mar 3, 2007
1,991
45
Whistler
From my experiences their test seems to be pretty accurate. The local shop here has such a hard time keeping everyone's totally cooked brakes running well. They do a good job but I wouldn't want to deal with so many fried brakes from all the big brands.
Yerp, to be honest I'm not sure why we still have brakes with such tiny pads and relatively small rotors - a 10" rotor and some pads that were say 25% bigger than Saint pads (which were already 25% bigger than the previous gen Saint pads) would solve a lot of problems as far as heat goes.