Your Views On Rear Disc.

[Conor the basher.]

Hello, I just want to hear your views on rear disc.

i have never used rear disc on a mod but im currently using it in my stock and im not sure weather i like it or not , I have heard that it has a better feel on mod.

So comment away

Edited January 9, 2007 by koxx 20" 26" rider

[Matt_Tupman]

Yes they do feel better on a mod, i've been running mine for 6months now and so far it seems ok. It feels very nice on natural but pretty pants on street but as I don't ride to much street thats not to much of a worry to me.

[max-t]

Rear stock disc FTL!!!

[Conor the basher.]

Max u have never run rear disc so shut up u big gay.

[Broomer]

should be nice if the rotor is big enough, my next frame will have rear disk mounts so i have the option if i want to.

[max-t]

Max u have never run rear disc so shut up u big gay.

yer i have you fooooooooool.

Hope Mono Mini.was W***

Change to a magura with cock pads Phat pads Ali C joypads

[Nick Garland]

I have run a rear disc ages ago, Hope C2 180mm, not as if it wasnt powerful its just, I didnt feel that it held that well, I still am skeptical of discs on the rear I just dont think they have the power of a rim brake.

Think logically 26" wheel being stopped by pads, or a 6-8" disc being stopped, It might not seem much as trials is a slow sport (relatively speaking) however the difference in diameter makes a big difference.

[omgnoseat]

i'm a big fan on rear discs for a couple of reasons:

- they don't slip in wet weather (even hold better sometimes)

- silent, which makes you seem smoother

- a little buckle (sp) in the wheel won't effect your braking performance as much as rim brakes

- better to maintain than rim brakes (imo)

i got a magura marta at the rear, which isn't that powerfull

but i still prefer it over hs 33

[Conor the basher.]

Well im using a hope 180mm 07 but it dosent seem that good might get a 200mm.

[Greetings]

Damn strong. Had a Hope Trials on a 180mm rotor and 20" wheel, wheel slipped twice in about half a year, usually it would be the tyre that didn't grip hard enough. Also great for mixed weather conditions, needless to say how many of us enjoy riding in heavy rain?

Downsides are that during 4 days of natural riding I had to change the rotor twice.

[M-i-t-c-h]

I used rear disc for a few months at the begining of last year, went back to magura and now im back on disc again, i just couldnt stay away and i dont think i will ever go back to magura, the only reason why i would is the limited choice of frames, but manufactures i think will soon catch on to the fact that disc is better and a wider range of frames will come out (i hope) *hint hint deng!*

Think logically 26" wheel being stopped by pads, or a 6-8" disc being stopped, It might not seem much as trials is a slow sport (relatively speaking) however the difference in diameter makes a big difference.

Valid point, but at contact point size is the same if not more on a disc pad. you will get more power from a larger radios, but you will stop quicker with a disc because the pistons and the contact area is smaller and disribted evenly over the whole surface of the pad. unlike a magura. Its like when someone with a high heal treads on soft ground, there guna make a larger hole than if an elephant treads on the same bit. If tiny discs are good enough for motorbikes, then why not us lol.

I agree They feel a bit wierd at the begining, maguras are either on or off, with the disc theres loads more modulation. Keep going you will get used to it and your riding will become smoother.

p.s For the record I ride alot of rocks and I sidehop left and i have never had to change my rotor. lol

p.p.s How long have you been using it? they take a good 3-4 weeks to bed in fully

Edited January 9, 2007 by M-i-t-c-h

[RobinJI]

I have run a rear disc ages ago, Hope C2 180mm, not as if it wasnt powerful its just, I didnt feel that it held that well, I still am skeptical of discs on the rear I just dont think they have the power of a rim brake.

Think logically 26" wheel being stopped by pads, or a 6-8" disc being stopped, It might not seem much as trials is a slow sport (relatively speaking) however the difference in diameter makes a big difference.

Yeah, BUT...

While the rim break gains mechanical advantage through the wheel-size, the disc break gains it back again, and if not more, through the lack of travel needed at the pads, meaning the break it's self can clamp a lot harder with much higher leverage ratios, therefor counteracting the loss of power from the small rotor.

Personally, I like rear discs, the only reason I don't run one is my style of riding is pretty streety, and I always used to find my jump bikes disc stopping me doing some stuff I would do otherwise. That and the cost didn't help, but that was less important to me.

[Nick Garland]

Good point about the mechanical advantage.

I suppose its going to be one of those things about rear brakes, alot of personal preference. I prefer a front disc over a front rim brake, but I shall use the tried and tested Magura on the back.

Just dont trust discs on the back much.

[loffa]

I've been running a 200mm Hope Trials on the rear of a 26" bike for about 4 months now. I mainly swapped to a disc because I was fed up with having all the troubles with my magura leaking all the time. A disc is much more fit and forget kinda thing. In that time I've hit the rotor once, and I just bent it back and it's good as new again.

As for brake power, it has much more modulation than a magura which I love because now I can do those smooth looking taps to manuals much easyer and without that ear-killer brake noise. And it holds really good aswell, I'd say as good/in some conditions even better than most Maguras out there.

The only bad side of a disc brake is that if you get some dirt or mud over your brake or it's generally having a bad day then with a rim brake you can re-grind your rim and sand down your pads a bit and you're good to go, but with disc brake all you can do is pour water over it keep riding so it cleans itself out, but sometimes when you've been riding in really bad conditions and it's really unclean(haha, cant think of the right word atm ) it can take a few days before it gets as good as it used to be.

Edited January 9, 2007 by loffa

[Conor the basher.]

Really the main thing i am worried about is hitting the disc.

[loffa]

Hitting the rear disc is MUCH harder than you think, harder than hitting the front one I reckon. The only time your rear rotor will be hit is when you miss both wheels on a sidehop, and even then you may just land on the dropout. If you look at a bike with a rear disc straight from the rear you can see that the rotor is actually really close to the spokes and protected by the wide rear tire, as long as the hits come straight up not at an angle.

And even if you hit the rotor you can pretty much always bend it back. I've seen a (front) Marta SL rotor bent to like 90 degree angle and it could be bent back just fine. The same rotor is in fact still being used, 2 years later, just that now it is on the rear of my mates Monty.

[Tall_Rob]

I can see the new fad/craze for 2007........................

Double discs are coming back in to fashion...

I can't talk, i've got a 07 hope mono trials on the rear and loving it.

Rob

[GTF]

Change to a magura with cock pads Phat pads Ali C joypads

Edit: Vee

[that NBR dude]

I used to run twin disks back in about 2001, and always swore back then, they were more powerful than maguras, not that anyone listened. The one issue I found back then, was when they dont work, theres not a great deal you can do about it. Its not like adding tar or grinding.

Ive just recently gone back to twin disks, as I thought I would see how these mono Trials fair in the world of rear disks, and they still suprise me even now. They hold on things I dont expect them to, and they feel great. They take some getting used to, as you find yourself pulling the levers harder than you need to, as you dont expect them to lock, but they do!

And to anyone who says "oh they are easy to bend" I think thats rubbish. I sidehop left, and on the bikes ive had with disks, I have never bent a rotor from hitting it. It really is so difficult to actually land full force on one!

If you have the option to give a rear disk a go, I would say go for it. I think you will be plesantly suprised at how well they really work.

[mehukatti]

I have a Shimano Deore 160mm disc brake on rear with red EBC pads and Fibrax steel braided line. Bought it from some guy for 50eur who said it works really well. I didn't expect it to be anything special, but holy shit! It's the most powerful rear disc brake I have ever tried on street/trials stuff. I would say the power is almost at par with perfectly set up and pimped HS33 (grind, koxx blox, steel braided line). However, it has the same problem as almost all disc brakes, the pads move back and forth when the brake is locked, destroying your accuracy on back wheel. This issue is pretty much the reason why I would still prefer HS33 on my future trials bike (the Deore is currently on my ryan Leech style street bike).

Edited January 12, 2007 by mehukatti

[RobinJI]

Yeah,the Deore M525s do lock rather well, my dad has them on his XC bike and there really suprising, and on top of that the only £50 and the lever feel really nice. I run LX's on my Freeride bike and they dont work for trials for shit, but there bloody good from speed.

[Waynio]

they are better on a mod as a 160mm rotor on a 19" rear wheel is good size ratio. wheel to disc size.

just out of interest im looking to do the same, what 26" bike have you got? and does it have a direct disc tab? as i want to do it to my 26" also the disc size you are using would be much appreciated? am looking into putting a mount on my frame and putting it "plus 20 or 30" on the frame so that i can get away with a caliper number 3 hope brake (which equates to a 160mm on IS) then with the disc increment 180 or 190 dependant on where i can get the mount welded on.

Cheers for your info.

Waynio..............................