N Roach Posted December 14, 2007 Report Share Posted December 14, 2007 Hi,Just wanted to know if anyone has any pros and cons of running a rear disk brake for street and natural riding. Also weather riding (wet dry.) I sidehop to my left which I think would be one problem.Nathan Quote Link to comment Share on other sites More sharing options...
Mike W Posted December 14, 2007 Report Share Posted December 14, 2007 The stock im building at the mo has dual bb7s on, they where really good on my mates bike.They are harder to hit than you think. Quote Link to comment Share on other sites More sharing options...
basher Posted December 14, 2007 Report Share Posted December 14, 2007 Its actually harder than you think to hit one i believe. But i hate rear disks, dont like the feel of them ewwwwwwww and also find my vee brake preforms better. Quote Link to comment Share on other sites More sharing options...
Greetings Posted December 14, 2007 Report Share Posted December 14, 2007 They are hard to hit but on street. On rocks, you'll probably end up with a crooked rotor after a few rides.I had dual BB5's on my bike, the brakes are just as powerful as BB7's but they didn't work too well on the rear wheel - not because of the lack of power.The problem with Avids is that you can use the speed dial knob to make the brake more powerful, but that also makes it much more spongy. The biggest issue you will encounter is that you need to completely release the lever for the rear wheel to unlock (when the speed dial is on the maximum setting). That is not good if you are used to a Magura, in which the wheel unlocks instantly... it's actually quite dangerous especially when you're doing a front wheel gap.My advice is to get a 220mm rotor and a Mono Trial. The Hope is a spongy brake, but it's not as spongy as the BB's set to have the same locking power and therefore doesn't have the problem mentioned above. Hope that made sense... Quote Link to comment Share on other sites More sharing options...
aener Posted December 14, 2007 Report Share Posted December 14, 2007 ...Or just set the brake up so that you don't have the speed dial all the way out? Quote Link to comment Share on other sites More sharing options...
dave85 Posted December 14, 2007 Report Share Posted December 14, 2007 Less power. And yes, you do need all the power you can get. Quote Link to comment Share on other sites More sharing options...
Greetings Posted December 14, 2007 Report Share Posted December 14, 2007 Yep, that's the problem...Dual discs are great on a mod since a 180mm Mono Trial will already be more powerful than any rim brake setup. On a stock though it's a bad idea Quote Link to comment Share on other sites More sharing options...
Mike W Posted December 14, 2007 Report Share Posted December 14, 2007 203 discs that i have used on stocks have been way more powerful than rim brakes.... Quote Link to comment Share on other sites More sharing options...
basher Posted December 14, 2007 Report Share Posted December 14, 2007 203 discs that i have used on stocks have been way more powerful than rim brakes....And leave your rim ruined and give you a horrible back brake feel Quote Link to comment Share on other sites More sharing options...
Tall_Rob Posted December 15, 2007 Report Share Posted December 15, 2007 I'm 15 stone and running dual disc on a stock bike and have never had any problems.I have been for a year now.I've run 180mm and now running 200mm, both have been more than powerful but 200mm.... oh my god!I side hop to my left and have never had problems... Your frame and tire will always get in the way first before hitting a rotor.I use Hope mono trials and have found them more than satisfactory and when i have used avids... i have found them to be more 'on, off' feeling.A well set up brake does make all the difference but have never had problems before. (same as with maggies)In wet weather my brakes have performed excellently and have reduced braking power ever so slightly.All i can say is give it a go or try a friends bike but don't dis it till you try it.Just ask anyone if they've seen me ride...... my brakes work well............Rob,Thinkbikes.com Quote Link to comment Share on other sites More sharing options...
Captain Scarlet Posted December 15, 2007 Report Share Posted December 15, 2007 On a mod with 160 rotors, from sidehopping (in the direction of the discs), unless you hit your front rotor at the same time, it is physically impossible to hit the rear. Even if you slip down to chainstay, it still clears it.I'm quite a lover of the dual discs, the brakes just feel so solid (at least Hope's do), and stop you as soon as you pull the lever a tiny bit.But sometimes this can be annoying, (at least I found) on street, as I had a habit of dragging my brake a bit, as soon as I went on a friends Ti, I found the brake would lock because of this.I think they are great, look good, sound good (well no sound) and work good.And they are definately beneficial in natural/competition. Quote Link to comment Share on other sites More sharing options...
The Duck Posted December 15, 2007 Report Share Posted December 15, 2007 Well if someone wants to send me one to test out on my Ozonys, I'll be more than happy to. Give you a review... haha Quote Link to comment Share on other sites More sharing options...
craigjames Posted December 15, 2007 Report Share Posted December 15, 2007 ive been running dual bb7's with 185 rotors for the last 4 months or so and ive got to say im not slightly tempted to go back to a maggy, more power, just as good hold, constant predictable braking. no issues with pads returning from the disc slowly. my rear brake actually has modualtion now and its silent. i think theyre great and ive never hit my disc. Quote Link to comment Share on other sites More sharing options...
liam-pantera Posted December 16, 2007 Report Share Posted December 16, 2007 i think that on a stock bike rear disk works realy well but i have found on mod bike there just to grabby and make the bike feel horrid .when i had a rear disk on ym stock i never hit it at all and i gave it some right hammering . only reason i stoped was because i need to go back to a echo pure . one day i will go back to rear disk maybe on a 24 inch who knows Quote Link to comment Share on other sites More sharing options...
toyota200x Posted December 16, 2007 Report Share Posted December 16, 2007 ive been running dual bb7's with 185 rotors for the last 4 months or so and ive got to say im not slightly tempted to go back to a maggy, more power, just as good hold, constant predictable braking. no issues with pads returning from the disc slowly. my rear brake actually has modualtion now and its silent. i think theyre great and ive never hit my disc.Is this on a stock?^^^^I am also debating on trying a dual disc stock with a avid bb7 in the rear with a 203mm rotor. I really love my v brakes but I kind of wana see how a rear disc would perform. I am pretty worried that it won't have enough hold. I weigh 165 pounds and consider myself to be smooth. What do you think? Quote Link to comment Share on other sites More sharing options...
mairomaster Posted December 17, 2007 Report Share Posted December 17, 2007 Untill now I've been riding stock with rear magura. But now I deside to buy a mod and I am wonderig what frame to buy: echo lite 07' magura or echo lite 08' disc? My magura feels excellent but don't stops very good at big taps and etc. And I can't deside wheter to go for a rear disc or stay with magura. I know that on a mod 160mm disc is as same even more powerfull as 203mm on stock http://www.trials-forum.co.uk/forum/index....showtopic=74202So I could put avid bb7 160mm and I think it would be much more powerfull and with more modulation than my magura. But on the other hand I am afraid I can hit it. But I can make some handmade disc guard, I have something in mind. I also want to say that I'll ride only street trials. What do you think about the hole thing and especially for avid bb7 160mm on mod? Quote Link to comment Share on other sites More sharing options...
Mike W Posted December 17, 2007 Report Share Posted December 17, 2007 And leave your rim ruined and give you a horrible back brake feel why will it ruin a rim ? Quote Link to comment Share on other sites More sharing options...
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