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Weight Topic - Rear Disc Vs Magura.


Will Arnold

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which is the lightest setup overall fellas? almost certain that the disc will be heavier, but by much?

i'm a little put off by something that happened with my hs33 last night involving a slightly flat spotted try-all rim :S

views on pro's and cons of both would be good too!

Lightest set-up would be rear vee.....although with a magura mount frame it'll easily be the magura against the disc.

If you want exact weights stop being so lazy and research it on tarty :P

Hope mono trial 160 against Magura Hs33 + clamps

Edit: And as for pro's and con's, use the search.....

Very briefly:

Disc

Pros:

* Better modulation,

* Better wet weather performance ( in general ) ,

* Fairly tucked away compared to magura crossover.

* Better hold than most magura set-ups

Cons:

* Heavier

* Shifts weight distribution towards rear of the bike

* Far easier to get contaminated

* Once contaminated far harder and more expensive to put right ( £13 for pads, IPA to clean rotor )

* Less bite than a magura set-up

* Needs fairly precise setting up, not a very easy job with snail-cams on some frames

* Generally more hassle to maintain

* Harder to bleed

So, in conclusion; I reckon disc on the rear for a natural ( read competition ) mod bike. In all other cases, unless you very frequently require modulation ( think braunschweig ) then a magura is the easiest, cheapest, lightest and best performing option.

Edited by Alex Dark
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The rear maggy does save weight, can't remember roughly how much though.

The big difference is the weight distrobution though, it moves a big chunk of weight away from the rear axle, which is good!

The only bike I'd get another rear disc on now would be a 24".

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i tend to feel smoother on a bike with dual disc, even my mates say i look smoother, i dont like rear disc though, it just feels wrong to me and i dont think they work very good on the rear

when you gap you can feel the bite, its more "torquey" if you let the wheel spin and pull the break in the air it throws you differantly, were as a magura just makes a noise and you dont feel it as mush because of the forse being on the rim and not at the hub.

rear maggie is lighter and cheaper depending which disc it'd be againts

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I feel it's more less to do with how much weight, and more to do with where the weight is.

Exactly, that's why a rear disc feels heavier than it really is.

Also I wouldn't say that a disc is more powerful than 'most' Magura setups. If you think that, you must have pretty shit experience with Maguras or were running a disc brake on a mod.

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Lightest set-up would be rear vee.....although with a magura mount frame it'll easily be the magura against the disc.

* Harder to bleed

So, in conclusion; I reckon disc on the rear for a natural ( read competition ) mod bike. In all other cases, unless you very frequently require modulation ( think braunschweig ) then a magura is the easiest, cheapest, lightest and best performing option.

I beg to differ much esier to blead a hope then it was maggy

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Lightest set-up would be rear vee.....although with a magura mount frame it'll easily be the magura against the disc.

If you want exact weights stop being so lazy and research it on tarty :P

Hope mono trial 160 against Magura Hs33 + clamps

Edit: And as for pro's and con's, use the search.....

Very briefly:

Disc

Pros:

* Better modulation,

* Better wet weather performance ( in general ) ,

* Fairly tucked away compared to magura crossover.

* Better hold than most magura set-ups If you get them set uu right then they should never slip

Cons:

* Heavier

* Shifts weight distribution towards rear of the bike

* Far easier to get contaminated depends...

* [b]Once contaminated far harder and more expensive to put right ( £13 for pads, IPA to clean rotor ) muc-off disk brake cleaner ***

* Less bite than a magura set-up just not true

* Needs fairly precise setting up, not a very easy job with snail-cams on some frames

* Generally more hassle to maintain

* Harder to bleed

So, in conclusion; I reckon disc on the rear for a natural ( read competition ) mod bike. In all other cases, unless you very frequently require modulation ( think braunschweig ) then a magura is the easiest, cheapest, lightest and best performing option.

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don't have to worry about untrue rims, flat spots or bits of missing sidewall with a disc ;) plus you barely ever have to buy pads for a disc brake. you don't need to grind your rims so the sidewalls can last a bit longer. obviously theres a weight penalty and the lever feel of a disc doesn't give you the same control as a rim brake (you can't 'feel' the bike through a disc brake like you can a rim brake, it's weird :S )

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If you ride in the wet, or natural at all, they're f**king sweet! Even for street it's nice being able to do 'other' stuff where you might be feathering your brake without that Magura honking noise. I didn't really mind it so much when I had a Magura on, but once you change you realise how loud it is. It's pretty sweet not having to grind my rim every few weeks, not having to tweak pad setups, etc. Just fit and forget. Especially good in the wet too - last couple of weekends at Shipley have been wet, so it's been nice being able to trust my back brake no matter what's going on around it.

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If you ride in the wet, or natural at all, they're f**king sweet! Even for street it's nice being able to do 'other' stuff where you might be feathering your brake without that Magura honking noise. I didn't really mind it so much when I had a Magura on, but once you change you realise how loud it is. It's pretty sweet not having to grind my rim every few weeks, not having to tweak pad setups, etc. Just fit and forget. Especially good in the wet too - last couple of weekends at Shipley have been wet, so it's been nice being able to trust my back brake no matter what's going on around it.

Some people, like me, love that noise :P

And in my experience, for street and natural, you need bite in your brakes. Maguras (set up right) give that little but extra bite. And you can't bend rotors. And they're cheap to maintain, whereas discs can get extremely expensive. And they have better weight distribution.

This is my view anyway.

Oh, and maggies are shit on front imo. Rear Maggie front disc F T W

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My 160 Mono Trial rotor's bedded in nicely now and it's plenty bitey enough. Obviously it's not quite as bitey as a Magura is, but it's pretty close. Similarly, regarding the maintenance, pads last longer (and are cheaper than decent Magura pads), you don't need to grind your rims or anything of that kind, you don't need to buy boosters 'n' stuff to make them better - they tend to look after themselves better. I see what you're saying about bending rotors, but with a 160 it's pretty well tucked out the way on most bikes. It sucks having to be careful to not contaminate it in any way, but it's not really too much effort.

Didn't really notice much of a change at all in weight distribution when I put my disc on. The positives it added to my bike certainly outweigh any potential negatives it might theoretically have. I'd rather have a brake that functions amazingly in all weather rather than a problem with the distribution of weight on the back end of my bike. I mean, apart from the rotor which is reasonably light anyway, the actual positioning of the brake caliper isn't really significant on a mod to make that big of a difference, and again, if it does make much of a difference it's outweighed by how much nicer discs are to use...

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Will! Congrats on the real sized bike :P

Disc is the way forward dude, even on 26" I think you'd enjoy it, but on 20" there's no question. Once you've added a booster to a Magura the weight difference is next to nothing, you can always pimp a disc out to make it lighter as well if you want! A well set up Mono Trial owns an HS33 on a mod...

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