Nerding out on Brakes shall we? Not another tech deraliment

NicoZesty96
Posts
382
Joined
8/21/2014
Location
portogruaro, VE IT
11/26/2024 10:00am
Nobble wrote:
I bought 4 brakes because they were on sale.Installed the first two, bled up fine, got to the trailhead. Lever main seal failed while riding around...

I bought 4 brakes because they were on sale.

Installed the first two, bled up fine, got to the trailhead. Lever main seal failed while riding around to bed in the pads. It would slowly lose pressure and pull to the bar.

Took it to the one local shop I trust, he did a quick lever bleed and then agreed it was a failed lever.

Called Magura, and they told me the brake couldn’t have failed the way it did and that if the main seal was bad it would be leaking out of the brake. Which is wrong. The warranty guy said “It’s a bleed issue, but if you want to throw parts at it I guess I’ll send you a brake.”

Took another one of the brakes I bought to replace the failed one and mounted it. Half way into the first ride on that brake it failed in the exact same way. Called up Magura again. Told the guy I had the exact same problem. He told me “It may need to be bled properly”. Before I said something I’d regret, I told him he’d be hearing from my LBS. I took it to my LBS and had him check my work again and then process the warranty. They gave him a horrible time with it too.

Took the warranty brake they sent me and returned the two unused ones.


In summary, my 66% is accurate. I installed three brakes on my bike and two failed. I Had the LBS check my work every time. After the second one failed on a steep trail I decided they weren’t worth trusting with my safety. If they’d been super apologetic and helpful, maybe I’d feel different about it. But they were dicks and basically insisted that if there was a problem, I must be doing something wrong.

Well it’s accurate if you were 100% of the customers 

Which you’re not, but damn that’s unlucky, and I guess different countries will experience different customer service experienced depending on who you find on the other side

My and my friends experience has been the exact opposite to yours with 100% success rate, neither of our percentages are the whole picture, but I’d be piased too if I were you

1
1
Nobble
Posts
104
Joined
9/24/2010
Location
Santa Cruz, CA US
11/26/2024 10:35am
Nobble wrote:
I bought 4 brakes because they were on sale.Installed the first two, bled up fine, got to the trailhead. Lever main seal failed while riding around...

I bought 4 brakes because they were on sale.

Installed the first two, bled up fine, got to the trailhead. Lever main seal failed while riding around to bed in the pads. It would slowly lose pressure and pull to the bar.

Took it to the one local shop I trust, he did a quick lever bleed and then agreed it was a failed lever.

Called Magura, and they told me the brake couldn’t have failed the way it did and that if the main seal was bad it would be leaking out of the brake. Which is wrong. The warranty guy said “It’s a bleed issue, but if you want to throw parts at it I guess I’ll send you a brake.”

Took another one of the brakes I bought to replace the failed one and mounted it. Half way into the first ride on that brake it failed in the exact same way. Called up Magura again. Told the guy I had the exact same problem. He told me “It may need to be bled properly”. Before I said something I’d regret, I told him he’d be hearing from my LBS. I took it to my LBS and had him check my work again and then process the warranty. They gave him a horrible time with it too.

Took the warranty brake they sent me and returned the two unused ones.


In summary, my 66% is accurate. I installed three brakes on my bike and two failed. I Had the LBS check my work every time. After the second one failed on a steep trail I decided they weren’t worth trusting with my safety. If they’d been super apologetic and helpful, maybe I’d feel different about it. But they were dicks and basically insisted that if there was a problem, I must be doing something wrong.

Well it’s accurate if you were 100% of the customers Which you’re not, but damn that’s unlucky, and I guess different countries will experience different customer service...

Well it’s accurate if you were 100% of the customers 

Which you’re not, but damn that’s unlucky, and I guess different countries will experience different customer service experienced depending on who you find on the other side

My and my friends experience has been the exact opposite to yours with 100% success rate, neither of our percentages are the whole picture, but I’d be piased too if I were you

I didn’t say Maguras have a 66% failure rate. A lot of people are very happy with their brakes.


I said “My Maguras had a 66% failure rate” which is a factual statement. I installed 3 and 2 failed.

It was the customer service that eliminated any chance of me using their products in future. Insisting your products work differently to the way they actually do and calling your customers incompetent is an unusual strategy.

1
HexonJuan
Posts
141
Joined
6/10/2015
Location
WI US
11/27/2024 6:52am
i could actually get some spare hopes piston and attempt something like that, i feel one of the best things on Magura's are the pistons, the...

i could actually get some spare hopes piston and attempt something like that, i feel one of the best things on Magura's are the pistons, the magnet is just genius and i have no idea why others don't do it 

 

HexonJuan wrote:
Seen mechanical calipers using magnetic pad retention lose their magnetism under heavy, heavy use. Think Pike's Peak or Highway to the Sun in HI. It requires...

Seen mechanical calipers using magnetic pad retention lose their magnetism under heavy, heavy use. Think Pike's Peak or Highway to the Sun in HI. It requires deep and heavy heat cycling, but it can happen.

Again, if Magura users never had anissue with it, me included, i think it's solid enough that other manufacturers could use it if done the same...

Again, if Magura users never had anissue with it, me included, i think it's solid enough that other manufacturers could use it if done the same way.

Not saying it doesn't work, just saying in certain worst use case scenarios it isn't the most reliable. Certainly is satisfying replacing a set of pads and hearing that snap as they pop into place though. 

1
TimBud
Posts
373
Joined
2/29/2012
Location
GB
Fantasy
875th
1 day ago

@Nobble Magura USA are NOT Magura! They are just a distributor. They are useless and I don’t know why Magura haven’t dropped them. 

Your symptoms generally only happen if the system is overfilled or after a crash.

If you reset the pads and don’t crack the bleed port you can easily blow the main seal too.

Bleeding without the bleed blocks installed (and pads still in) causes overfilling.

It’s a common occurrence (for warranty depts) to see these cases and it’s always user error. Magura’s are a super simple bleed but the amount of PRO mechanics I’ve seen that try to bodge and do their own methods is ridiculous. And they always cause issues.

The mere fact that you’ve had such a high failure rate points to you being the common denominator.

Maguras carbotecture masters are a known weak point so you have to bleed and maintain them with that in mind. 

Sorry man

2
1llumA
Posts
101
Joined
3/11/2020
Location
CA
Fantasy
550th
4 minutes ago

I am guessing this would change the leverage rate of lever movement to MC piston or at the very least put the MC piston starting position deeper ?

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