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Has Anyone Been Using Sram Xx Carbon Mag Discbrakes?


Birre

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is there such a thing as to pricey for trials? got to up to oneanother i recon.. i just want to know if there is anyone that has tried or use this specific brake so i can learn something from them.. otherwise i will just buy em and try em for myself :D

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The elixers are a different brand and were plagued with manufactering problems. Not the same.
:blink: sram owns avid. And considering they say avid on them and look pretty much identical, i would put money on them being exactly the same as elixer's just on a diet. Anyway, your much better off spending your money on hope mono trial brakes imo.
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is there such a thing as to pricey for trials? got to up to oneanother i recon.. i just want to know if there is anyone that has tried or use this specific brake so i can learn something from them.. otherwise i will just buy em and try em for myself :D

I doubt anyone's tried them...

If it were my money I'd go Hope Mono trial...but that's just my 5 cents :)

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tiny amount? it´s about 200gr almost. Now it happends to be that i compete at a high level, but i think that has nothing to do with how much you can spend on your bike. Most people that buy ferraris etc aren´t competing race drivers right? Just fat rich guys that wants a fast car...

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if you compete at high level you want reliability as well as light, hope mono trials are epic, they'll take the odd nock far better than some superlight brake, besides, no matter how light you get a disc brake, a rim brake set up will always be lighter ;)

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reliability is also relative, if you use the brake for 4 months then get a new one it does not matter as much... disc vs. hs33 is another deal, since it´s 2 very different feeling brake systems..

but i agree reliability is a factor aswell.. that is why i have an heavy king hub on my otherwise pretty darn light bike...

If you want a light trials brake, I'd also advise looking at the Magura Marta SL mag brake. Stan from tartybikes was using one, if you're lucky he might see this and post up his thoughts.

I think i´ve read that he is very happy with that front brake... Don´t know if i want to get involved with magura products again though:P and also the wheight savings over a carbon/ti hope trials with the plastic hose is subsantialy ( sure of misspelled) less.

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If you want a light trials brake, I'd also advise looking at the Magura Marta SL mag brake. Stan from tartybikes was using one, if you're lucky he might see this and post up his thoughts.

I have the non-sl marta and I can tell you it is AMAZING. It has alot of bite and hold but still modulates brilliantly, i'm sure quite a few people from Berkshire can vouch for me.

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king isn't the best setup... eno, or other high EP freewheel, replaced every 3 months, lighter and just as good?

Im just going to go ahead and say no there, if you´ve had a king and maintained it you will not replace it.. My first hub i got back in 2003 still runs perfect. got tire of the colour thogh:)

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The bike on my website is quite dusty by now. Hasn´t been ridden for quite a while, since i got a new rig. I know there is more wheigh to be saved, but i build after my own head, my own riding and with components i trust and knowledge ive collected over the 15 years ive been riding.

this thread took quite a turn but i guess i will find the info sooner or later, from someone or by myself:)

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kings will eventually shit themselves under trials use. looking on you website + pic of your bike theres alot of weight saving you've missed out on

Not trying to be a dick here but Bjorn competes in elite, unless you do too, advice on his bike probably isn't going to help alot. I would imagine he knows what works best for him.

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The only difference between the XX and the elixers is the XX uses more magnesium parts, rather than aluminum. It's the SAME BRAKE and performs EXACTLY the same. It's just lighter due to the difference in materials used.

Same thing with the XX Forks. Only difference between a XX fork, and the corresponding sibling is the damper cartridge has that fancy XLoc handlebar lock-out. Same fork otherwise. you can make any 32mm Rock Shox fork "XX" by replacing your damper cartridge with an XLoc, including the Argyle.

The only difference between the XX stuff and the new stuff are the obvious ones: Cranks, cassette and shifters. Everything else of that gruppo is the same as other things they offer.

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I've seen way too many Avids with dodgy lever piston seals to ever consider them for trials. For normal use they're fine, but holding the brake on, the lever slowly moves towards the bar as oil leaks around the piston. Release the lever and pull again and the bite point will recover completely, so most people using them for XC won't even notice and even if they do it doesn't bother them. If you're lucky and get a brake that doesn't do this, I reckon it would be an excellent lightweight brake for the front. However I'd buy a Marta SL for the front and Hope trials brake with all the carbon bits for the rear if money was no object. Instead I have a Louise on the front and a standard hope trials brake on the rear...

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I've seen way too many Avids with dodgy lever piston seals to ever consider them for trials.

I don't think thats as big as a problem as you make out. It happened to a couple of my trials brakes after nearly 18 months of hard use, riding 3-4 times a week. It's very rare that I see the problem on XC bikes, bare in mind I've probably done 30 or 40 caliper seal replacements in the last 2 years at work. And the Elixir has a completely different lever, I'm sure it has plenty of weaknesses but just not convinced the lever seal is one of them.

To Bjorn I will say go ahead and try them out! From my experience the Elixir performance is on a par with the Marta which is pretty damn good, I'm sure they will be good for mod. After looking at your bike I reckon they would suit it well, please let us know what you think if you do buy them.

The only difference between the XX and the elixers is the XX uses more magnesium parts, rather than aluminum. It's the SAME BRAKE and performs EXACTLY the same. It's just lighter due to the difference in materials used.

Same thing with the XX Forks. Only difference between a XX fork, and the corresponding sibling is the damper cartridge has that fancy XLoc handlebar lock-out. Same fork otherwise. you can make any 32mm Rock Shox fork "XX" by replacing your damper cartridge with an XLoc, including the Argyle.

The only difference between the XX stuff and the new stuff are the obvious ones: Cranks, cassette and shifters. Everything else of that gruppo is the same as other things they offer.

Nice rant ;)

If you're comparing to the Elixir mag brake then there isn't much difference, but there are quite a few differences over the standard elixir. Also I'm sure the manufacturing quaility will be much higher, standard elixirs can be pretty gash especially o.e.m spec.

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Yeah, from what i can make out i will prob just try it on the front to start with. And if it is very better then the hope i might try for rear aswell, but i doubt that very much. When it comes to rotors i will keep my rockman rotors since floating discs and trial don´t rime very well:P

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I don't think thats as big as a problem as you make out. It happened to a couple of my trials brakes after nearly 18 months of hard use, riding 3-4 times a week. It's very rare that I see the problem on XC bikes, bare in mind I've probably done 30 or 40 caliper seal replacements in the last 2 years at work. And the Elixir has a completely different lever, I'm sure it has plenty of weaknesses but just not convinced the lever seal is one of them.

All the brakes I've seen with leaky piston seals were never even used for trials, a mix of Avid juicy 3's and 5's mostly. Used for trials I'd say the leaking will get a lot worse very quickly. Thing is I've run Shimano XT brakes for 7 years of XC and never had to touch a seal, same for the 2 pot SLX's I replaced them with, and the 2 pot XT's on the other bike as well as all the Magura HS33's and Louises I've owned on trials bikes. This problem is one I've only seen in Avid brakes over the last couple of years and heard about in Hope ones. This is why I specifically flagged Avid as susceptible to this problem (My guess is they're not using the correct tolerances in the machining of the piston bores or o-ring grooves).

Edited by psycholist
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