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I've Ground My Rim.


JT!

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Well mine is a brake that holds me whenever (well rain effects it, but you know what I mean).

I've used plaz, clean rim, V brake, never slipped, and on a grind, and now a magura (totally standerd) with koolstops on a naff grind, and thats not bad either, doesnt slip.

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Mines dosn't slip. But it still feel powerless when riding.

Anyway i'm off to work now.  :P"

How can it not slip and be powerless? Do you mean not bitey?

I think you should give it a fresh bleed, stop being a nance, and pull the brake harder :)

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Learn to ride better so you don't rely 100% on your brake.

Also, just do as people have said and ride them in for a good hour or so.

Pour water on them, go out trials riding.

You could scrub the rim with a clean wire brush to get rid of all the swarf.

I recommend using the Heatsinks for this, as they will actually last the one hour bed-in period...

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you gotta remember that if you have either shit loads of tar or no tar atall the brake will be good, but if you have a slight bit of tar left it will be utter wank!

all you gotta do is re-grind with a fresh disk, because the other disk will probs have tar on it?

then clean the pads of all the tar, then bosh it all together and it'll be a beast ;)

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Well, i dont feel i should just put up with a shit brake, so i'm not just going to get used to it. Maby it will make me a better rider having a less effective brake, but i would prefer to have a really good brake, and enjoy riding.

I put fresh heatsinks on, and it still was pants, no where near as good as i had it, and now i doubt it never will be.

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Well, i dont feel i should just put up with a shit brake, so i'm not just going to get used to it. Maby it will make me a better rider having a less effective brake, but i would prefer to have a really good brake, and enjoy riding.

I put fresh heatsinks on, and it still was pants, no where near as good as i had it, and now i doubt it never will be.

read what everyone has said m8!

get the pads, clean them and file them back to reveal fresh material, then get ur angle grinder out and give the rim a fresh(non tarred) grind.

you will be laughing!

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read what everyone has said m8!

get the pads, clean them and file them back to reveal fresh material, then get ur angle grinder out and give the rim a fresh(non tarred) grind.

you will be laughing!

Thats what i did from the start, a tiny bit of tar isn't going to make a gigantic difference.

The rim had tar of befor i ground it, but when i ground it you couldn't see it anymore. There could have been a bit of tar on the pads, but that would have only made the brake better, than worse.

The thing it is sooo bad, that i can't even be botherd to try and make it better, becuase i just can't see doing any these things like scrubbing it with water / re-grinding (etc) making the difference that i need.

Edited by JT!
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Thats what i did from the start, a tiny bit of tar isn't going to make a gigantic difference.

The rim had tar of befor i ground it, but when i ground it you couldn't see it anymore. There could have been a bit of tar on the pads, but that would have only made the brake better, than worse.

The thing it is sooo bad, that i can't even be botherd to try and make it better, becuase i just can't see doing any these things like scrubbing it with water / re-grinding (etc) making the difference that i need.

trust me, that little bit of tar is gunna feck ur brake up!!

what other reason has it got for being shite when averyone elses kick arse?

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trust me, that little bit of tar is gunna feck ur brake up!!

what other reason has it got for being shite when averyone elses kick arse?

Well maby mine does 'click arse' but becuase i had loads of tar on befor, realativly speaking, it's crap.

I can gap onto curbs and such without it slipping, but if you land on the corner too far back, it just slipps, which i'm not used to using tar.

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Well maby mine does 'click arse' but becuase i had loads of tar on befor, realativly speaking, it's crap.

I can gap onto curbs and such without it slipping, but if you land on the corner too far back, it just slipps, which i'm not used to using tar.

still, it will be alot better when that lil bit of tar is gone!

if it doesent work properly then u can throw your bike at my head

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my brake slips when i land too far back too.

just land further up. you'll never get the same hold with grind as tar.

You see you have got used to it, but i haven't and don't inted to.

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my brake is amazing and i have a grind, just whack abit of tar on aswell and wil work unbelievably!!!

joE! ;)  trust me!

You see this is what i was getting at in this therd, you say your brake works amazing, to some it will probably feel shite. It's what you get used to.

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RIGHT..............YOur grind is Obviously too harsh and your pads arnt griping because when Friction is applied the pads wear down! if you was to do a lighter grind the friction would be balanced and your pads would not wear down on the harsh GRIND!

i had same Problem, regrind it lighter

Biff

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continue using the tar then.

why learn things properly when you can coat it with tar?

i used to think like you did. but i got over it. i get horrible brake slip sometimes, but i have learnt to blame my technique (or lack of) instead of the brake.

'cos im sure that if i land far back and brake holds, my tyre will slip off, and i'll end up breaking the wall in two anyway.

the closest to the hold of tar ive come without was plaz fjas and a fresh ground dx32, as heard in my video karnon released a while back.

i use plaz crm pads now, with the same grind. works OK.

just hold with your pedal and your brake seems to work a million times better.

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Do most people find their grinds more modulateable than using tar?

And are they at all silent, if so what rim and pads do you use?

Only asking as I want a silent set up

JT, does your grind make a squeak or not?

I think if you aim towards getting your brake to squeak a bit it will give better bite, which is perhaps more what you want? I found this when I first got a grind

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Ive never had a pad that was silent on a grind, apart from when my yellows went really crap. Then they just swooshed. Surely unless you have a six inch thick steel booster, then theres still gunna be vibrations, ie. noise.

My grind, which i havent redone in a good 3 months, is almost smooth, yet i still get amazing lock with koxx reds. Why not try some koxx pads on a koxx rim JT, sounds logical?

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I was running Koxx Browns with a smooth Koxx rim and plenty of tar, my brake was incredible (in my opinion), it locked really well and held every time. But after the DJ ride (when it rained) I swore I was going to get a grind, as I was sick of my brake being useless at the thought of water.

Anyways, I just took out a grinder (with tar still on the rim) and dug the b*****d in basically, nice harsh grind was the result. After a few minutes of riding around, bedding in both my pads and the grind, my brake was insanely good.

Maybe it's your set-up? My pads are set about 2-3mm from the rim and are perfectly square (bled with water, if that makes any difference). Safe to say I won't be going back to tar now ;)

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RIGHT..............YOur grind is Obviously too harsh and your pads arnt griping because when Friction is applied the pads wear down! if you was to do a lighter grind the friction would be balanced and your pads would not wear down on the harsh GRIND!

i had same Problem, regrind it lighter

Biff

I'v sanded down the grind, to try and get it back like it was, still pants.

continue using the tar then.

why learn things properly when you can coat it with tar?

Good point.

Do most people find their grinds more modulateable than using tar?

And are they at all silent, if so what rim and pads do you use?

Only asking as I want a silent set up

JT, does your grind make a squeak or not?

I think if you aim towards getting your brake to squeak a bit it will give better bite, which is perhaps more what you want? I found this when I first got a grind

Dosn't squeak at all, thats the the problem i supose...

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hmmm did you watch the grind video that daaahhnhilla did? you might be grinding your rim in a completely wrong way to everyone else.....

ive found the smoother grinds are best, they dont kill you pads and are perfectly fine in terms of power-well my brakes fine with it anyway

tar sucks-its far too grabby-i dont see why you bother having such nice pads if you used them on a tarred rim....cudda just gotten away with some old blacks ;)

anyway the grind-any chance you can get somebody else to do it for you? or at least show you?

you need to get rid of any remaining tar/shite- it WILL make a difference-ive done it before and wasted my time faffing with the brake thinking 'why wont it work?'

give a grind another chance-you will get it right eventually-and once you do you will never wanna go back...

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