Brakes still crap
Author
Discussion

okgo

Original Poster:

41,538 posts

221 months

Monday 14th September 2009
quotequote all
Hi all,

I posted a while back about my deore hydraulic disks on my rockhopper being weak..

I had them taken to the bike shop and looked at, he did the best he could on them ,and they are still pretty bad. Not able to lock either wheel up when I am riding, and my riding is mostly road too, not DH..

So what do I do?

Can I buy bigger rotors? Do I sell them and get some better ones?

All I want is to be able to bring the bike to instant stop, and at the minute they don't. May it be my weight 15.5 stone?

AyBee

11,193 posts

225 months

Monday 14th September 2009
quotequote all
It may well be your weight. Don't forget that with road riding, it's going to be harder to lock up because of the friction between the tyres and the road, it'll be easier on a loose surface! I have juicy 3's on mine and can just about get them to lock up on the road and I weigh 12stone but had no trouble locking them up on some of the decents at afan.... hehe

okgo

Original Poster:

41,538 posts

221 months

Monday 14th September 2009
quotequote all
Had a jump bikee before, it had Hayes HFX 9 Carbons on. And I could be going at a fair speed a progressive pull of front brake would result in a nice rolling stoppie.. I want that again biggrin

gbbird

5,197 posts

267 months

Monday 14th September 2009
quotequote all
Disc brakes should still lock up, even on a road. Sounds like there is definitely something wrong with them, but if you LBS has had a look then i am at a loss as to suggest what the problem mighrt be. How old are they? Perhaps a chat with Shimano to see if they will repair/replace? If not, and you personally are not happy with them (brakes are a very important feature and the rider must feel safe with them) then perhaps treat yourself to some new ones. You can get a pair of Juicy 3's for £75 here -

http://www.merlincycles.co.uk/mountain-bike-disc-b...

g

Kermit power

29,622 posts

236 months

Monday 14th September 2009
quotequote all
AyBee said:
It may well be your weight. Don't forget that with road riding, it's going to be harder to lock up because of the friction between the tyres and the road, it'll be easier on a loose surface! I have juicy 3's on mine and can just about get them to lock up on the road and I weigh 12stone but had no trouble locking them up on some of the decents at afan.... hehe
It's not his weight, and I'd also be questioning your brakes if you can only just get them to lock up on tarmac!

I'm 18 stone, and I have absolutely no problem locking up the tyres on the road on my bike if I choose to. Not sure which Shimano brakes they are, but they came as standard on a Spesh FSR XC Pro, so they're not going to be top of the range.

okgo

Original Poster:

41,538 posts

221 months

Monday 14th September 2009
quotequote all
Well I might buy some new pads.

But if that doesn't solve the issue its £25 down the drain.

I asked him how he thought he got on with them, he said yeh we got them working really nice. I got on, they are better than before, and they don't make odd noises under pressure, but they are still a LOT weakrer than my previous brakes, and even my HS33 MAgura rim brakes would be far stronger..

Wildfire

9,919 posts

275 months

Monday 14th September 2009
quotequote all
HS33 are pretty strong brakes. I have them on my 11 year old hartail and they're still pretty hard to beat. Bit on the heavy side though. But with the red pads, they're better than my Discs.

I have the Deore Discs and whilst they're ok they do require a bit of a yeank to get the power out of them and I'm only 10.5 stone.

Does sound like your pads could be at fault. Have you degreased the discs?

If you didn't want to buy new pads then you could always try and find someone with the same brakes and swap them to test.

okgo

Original Poster:

41,538 posts

221 months

Monday 14th September 2009
quotequote all
Wildfire said:
HS33 are pretty strong brakes. I have them on my 11 year old hartail and they're still pretty hard to beat. Bit on the heavy side though. But with the red pads, they're better than my Discs.

I have the Deore Discs and whilst they're ok they do require a bit of a yeank to get the power out of them and I'm only 10.5 stone.

Does sound like your pads could be at fault. Have you degreased the discs?

If you didn't want to buy new pads then you could always try and find someone with the same brakes and swap them to test.
The shop degresed and sanded them.. I know the Magura's are strong, the Hayes I had were immense, but these just seem st hehe I'd be inclined to ditch them for a set of 2nd hand hope m4's at this rate! I need stopping power!!

Xenocide

4,286 posts

231 months

Monday 14th September 2009
quotequote all
Do you have good feel through the lever or is it spongy?

okgo

Original Poster:

41,538 posts

221 months

Monday 14th September 2009
quotequote all
Xenocide said:
Do you have good feel through the lever or is it spongy?
It feels fine to me..

mk1fan

10,852 posts

248 months

Monday 14th September 2009
quotequote all
Mandog was commenting on his Deore's being rubbish compared to his Formula's on Saturday.

Ebay 'em and get a set of SLX brakes - if you want to stick with Shimano - I think Chain Reaction have them at £120 a pair at the moment.

okgo

Original Poster:

41,538 posts

221 months

Monday 14th September 2009
quotequote all
I'm inclinced to just get some second hand meaty ones, big hopes or something..

I'd be worried that the SLX would be too similar in power!

mk1fan

10,852 posts

248 months

Monday 14th September 2009
quotequote all
SLX's are a benchmark brake so if you have problems with them then it's going to be either you or the bike rather than the brakes. That said swapping them for another brand would be the. If you liked your previous set then source another set of those - should be able find a set on eBay or STW.

snotrag

15,506 posts

234 months

Monday 14th September 2009
quotequote all
okgo said:
The shop degresed and sanded them..
Thats as good as useless and a shop should know better really.

you need a tin of fenwicks brake cleaner, and some new pads.

seriously - I would put money on it. Your brakes are fine - your pads and discs are contaminated.

sanding them, cooking them, heating them up, washing them... all tales you hear on the internet. They do not work.

look at superstar components for some cheap pads.

okgo

Original Poster:

41,538 posts

221 months

Monday 14th September 2009
quotequote all
Fair enough.

Might look at a set then, its 100% not me, I used to be a very good street rider, and know how to control brakes, these are just crap. However I am now a couple stone bigger.

I shall have a look at some of those shimano slx ones! Easy job to fit?

mk1fan

10,852 posts

248 months

Monday 14th September 2009
quotequote all
Should be a straight swap.

There's certainly the possibility that he brakes are faulty - Pipe had a Hope mini mono that just wouldn't work and ended up being replaced by Hope as they couldn't sort it either.

As for your weight. Not a problem. I'm 14-stone odd and run 160/140 discs on my commuter and can lock both front and rear wheels easily. I run 160/160 on my XC bike and again can easily lock the wheels up (on or off road). Use bigger on the Trail and DH bikes though.

okgo

Original Poster:

41,538 posts

221 months

Monday 14th September 2009
quotequote all
mk1fan said:
Should be a straight swap.

There's certainly the possibility that he brakes are faulty - Pipe had a Hope mini mono that just wouldn't work and ended up being replaced by Hope as they couldn't sort it either.

As for your weight. Not a problem. I'm 14-stone odd and run 160/140 discs on my commuter and can lock both front and rear wheels easily. I run 160/160 on my XC bike and again can easily lock the wheels up (on or off road). Use bigger on the Trail and DH bikes though.
Ok, what bits do I sell then? Just the levers and calipers?

And when I buy the new ones, I get new levers calipers, hoses, and a set of pads? What about the rotors?

Thanks smile

mk1fan

10,852 posts

248 months

Monday 14th September 2009
quotequote all
okgo said:
mk1fan said:
Should be a straight swap.

There's certainly the possibility that he brakes are faulty - Pipe had a Hope mini mono that just wouldn't work and ended up being replaced by Hope as they couldn't sort it either.

As for your weight. Not a problem. I'm 14-stone odd and run 160/140 discs on my commuter and can lock both front and rear wheels easily. I run 160/160 on my XC bike and again can easily lock the wheels up (on or off road). Use bigger on the Trail and DH bikes though.
Ok, what bits do I sell then? Just the levers and calipers?

And when I buy the new ones, I get new levers calipers, hoses, and a set of pads? What about the rotors?

Thanks smile
If you buy new you should get all the bits you need - bolts, callipers, levers, hoses, mounts, pads and rotors. Buying second hand you may only get the levers, hoses and callipers. Although it should be clear from the ad what's included.

If yo can afford too then why not source the new brakes and then sell what's left after fitting them?