JT! Posted June 24, 2005 Report Share Posted June 24, 2005 (edited) Ok, I have just ground my rim, did it as rough as possible, as eveyone said i should. I still have my zoo pads on which i know aren't great on grinds, but the brake will absolutely not hold me what so ever. I know i still have the zoo pads on, and they are soft as cheese, but still, i can't imagine any pad making that much more difference, and even if it does make loads of difference, it's still not going to hold me as much as my old (loads of tar) setup. I don't wont people to post and say, get some proper pads, although everyone probably will. But i really don't think a harder pad is going to make that much difference. It could very well make it worse, as softer pads usually hold better anyway, but don't last very long. Have i don't something wrong, or are my standards too high? EDIT: Crap with heatsinks on too. Edited June 24, 2005 by JT! Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted June 24, 2005 Report Share Posted June 24, 2005 Have you used loads of tar previously? (Edit: I spy lots of tar on your bike picture :) ) And whats the setup like? Any pics of the grind? What rim do you have? Cheers Quote Link to comment Share on other sites More sharing options...
JT! Posted June 24, 2005 Author Report Share Posted June 24, 2005 Have you used loads of tar previously? (Edit: I spy lots of tar on your bike picture :) ) And whats the setup like? Any pics of the grind? What rim do you have? Cheers ← I haven't got a spacker (half the pad off the rim) setup at all, the pads arn't wonderfuly setup due to the rim being too wide for the frame. It's a tryall rim. I used to use loads of tar, with rimjam blues, and then the zoo pads which felt the same. I used enough to hold me basicly. I can't take a pic of the grind, but compared to pics of other peoples bikes, it look as good. Quote Link to comment Share on other sites More sharing options...
rickycoleman Posted June 24, 2005 Report Share Posted June 24, 2005 (edited) have you tried letting it wear in a bit? i went from tar to grand and had the same problem, it bedding in after a good half hour, but then i went back to tar because its just more consistent. Edited June 24, 2005 by rickycoleman Quote Link to comment Share on other sites More sharing options...
Pauly Posted June 24, 2005 Report Share Posted June 24, 2005 when i did my first ever grind with a koxx rim i made it so harsh like the harshest ivever seen on a rim and when i used ma zoo pads there was absolutely no hold at all when i did a manual and pressed the brake i could see all the green brake dust comeing off so if i was you i would try and make the grind alot more smooth especially with zoo pads Pauly Quote Link to comment Share on other sites More sharing options...
JT! Posted June 24, 2005 Author Report Share Posted June 24, 2005 (edited) Got the heatsinks on now and the braking just the same... It's a sort of goodish brake, but it just dosn't hold you on corners, wouldn't trust it doing anything big. I'll let it ware down and go back to using tar again. Edited June 24, 2005 by JT! Quote Link to comment Share on other sites More sharing options...
Andy Vox Posted June 24, 2005 Report Share Posted June 24, 2005 Thats quite strange cuz my zoo pads were awesome on a grind for the two days they lasted. lol :) But my brake goes crap like every few days due to build up of stuff on the rim. And im using plaz pads now. What i do is get the pads and the rim and put cellulose thinners on it, let it evaporate and yippeeeee... works like a dream, at least until it gets more crap on the rim. Might aswel give it a try. Quote Link to comment Share on other sites More sharing options...
JT! Posted June 24, 2005 Author Report Share Posted June 24, 2005 What i'm starting to think is that my idea of a working brake has much more hold than most peoples. I mean if what i have got now is anything like what people ride with, i don't know how you can! Quote Link to comment Share on other sites More sharing options...
tipsy Jock Posted June 24, 2005 Report Share Posted June 24, 2005 Try filing the top mm off your pads, will get rid of any contamination from tar or any other crap. Pete Quote Link to comment Share on other sites More sharing options...
PaRtZ Posted June 24, 2005 Report Share Posted June 24, 2005 pish to back brakes take it off! :P I found my back brake was awful when I set it up on my monty. It was a combintaion of two things which solved it a) The pads weren't hitting at the same time :( I put tar on the "wrong" side. For some reason (I swear my bike has a personality) my brake has more power over the right hand side than the left (or vice versa, cant remember/dont care) so i needed tar on the other side to make both sides good :) Quote Link to comment Share on other sites More sharing options...
SQuiT-man Posted June 24, 2005 Report Share Posted June 24, 2005 Try washing the rim with sugar soap. I tried this the other day and WOAH it makes the brake insanely more powerful in a lot of cases if there is any contamination at all Quote Link to comment Share on other sites More sharing options...
JT! Posted June 24, 2005 Author Report Share Posted June 24, 2005 Try filing the top mm off your pads, will get rid of any contamination from tar or any other crap. Pete ← The problem is way more serious than that really, a tiny bit of tar only my blocks is going to make the slightest bit of difference. Besides i put new heatsinks on. The problem is that the brake i have now is working as it should, it's just not good enough. Quote Link to comment Share on other sites More sharing options...
Mark W Posted June 24, 2005 Report Share Posted June 24, 2005 If they're new pads, they'll need to bed in. If it's a new grind, it'll need to bed in. If neither has bedded in, it'll be shite. Simple as that... Quote Link to comment Share on other sites More sharing options...
JIX Posted June 24, 2005 Report Share Posted June 24, 2005 I dont think it is working properly. Some times if you grind a rim wrong it can make it worse than a smooth rim (with no tar on, obviously). I have done this a couple of times by used a blunt diamond disc. The fresh grind was alot worse than the dead one. With my koxx rim and pads, I use a metal cutting disc from b + q. Works very well and holds me on edges easily. This is on my echo control. Maybe try a different grinding disc and technique. Grinds a more consistent than tar, from my experiance, especially in the hot summer. Quote Link to comment Share on other sites More sharing options...
JonPace Posted June 24, 2005 Report Share Posted June 24, 2005 sounds like you haven't done a harsh enough grind. Try going at more of a 45 degree angle at the rim when grinding. Also pour water on after to clear away all the filings from the grind, they can cause the brake to go turd. Quote Link to comment Share on other sites More sharing options...
JIX Posted June 24, 2005 Report Share Posted June 24, 2005 Try going at more of a 45 degree angle I find that doing that makes the brake work in one direction better and the other very poorly. I do mine at 90 degrees so basically just straight at it. Not saying Im right, just adding my experiance. Quote Link to comment Share on other sites More sharing options...
Mark W Posted June 24, 2005 Report Share Posted June 24, 2005 A grind doesn't have to be super harsh for it to be 'good' though. I usually do pretty light grinds with mine and it's always OK. It's poop for the first 20 minutes or so, but I just pour some water on, scrub the brake, wait for the squeal then we're sorted, basically... Quote Link to comment Share on other sites More sharing options...
biketrialler Posted June 24, 2005 Report Share Posted June 24, 2005 JT! its quite funny that you've been telling people to get grinds for so long without any experience of them yourself... :) Quote Link to comment Share on other sites More sharing options...
JT! Posted June 24, 2005 Author Report Share Posted June 24, 2005 (edited) Could be right, but i still don't think theres nothing wrong with it, i think it's working fine. I just think it clean rims with a grind isn't going to be good enough for me. Edited June 24, 2005 by JT! Quote Link to comment Share on other sites More sharing options...
JT! Posted June 24, 2005 Author Report Share Posted June 24, 2005 JT! its quite funny that you've been telling people to get grinds for so long without any experience of them yourself... :) ← Have I? If i have it's becuase people seem to be saying how great they are. Don't remeber telling anyone to get one though. Quote Link to comment Share on other sites More sharing options...
rich4130 Posted June 24, 2005 Report Share Posted June 24, 2005 Sounds like theres an underlying problem, bleed the brake maybe? Quote Link to comment Share on other sites More sharing options...
JT! Posted June 24, 2005 Author Report Share Posted June 24, 2005 (edited) Sounds like theres an underlying problem, bleed the brake maybe? ← The brake its self is fine as far as i can tell, i really need to get one someone elses bike with what they consider a good brake, and see how good it really is. Edited June 24, 2005 by JT! Quote Link to comment Share on other sites More sharing options...
nb88 Posted June 24, 2005 Report Share Posted June 24, 2005 I'd blame the grind myself... I used to do what i thought were harsh grinds when i first started doing them but they were more sorta 'file-like' instead of grippy. Then i got a rim with grind from tart and it didnt feel vharsh, but felt grippy. This worked about 200X better than my other grinds... so i grind like that now :) . I always seem to find that if its a good grind my brake works straight away...even with brand new pads :P Got any pics of the grind? Noz. Quote Link to comment Share on other sites More sharing options...
nb88 Posted June 24, 2005 Report Share Posted June 24, 2005 The brake its self is fine as far as i can tell, i really need to get one someone elses bike with what they consider a good brake, and see how good it really is. ← I consider a brake as good if it doesnt slide when i put it on and push heavily on the pedals, and if i pull the brake and push back on the back wheel it doesnt slip :) Quote Link to comment Share on other sites More sharing options...
JT! Posted June 24, 2005 Author Report Share Posted June 24, 2005 (edited) I consider a brake as good if it doesnt slide when i put it on and push heavily on the pedals, and if i pull the brake and push back on the back wheel it doesnt slip :) ← Mines dosn't slip. But it still feel powerless when riding. Anyway i'm off to work now. :P" Edited June 24, 2005 by JT! Quote Link to comment Share on other sites More sharing options...
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