Disc Brakes

[exemption64]

Hi,

Apologies if I am in the wrong forum. This is my first post? Please can anone help!
My son's Apollo Demolition needs a new front brake caliper. Though I am finding it difficult to trace one that will fit. The existing front disc is a promax 160mm. I presently have a zoom 160 caliper fitted ,though the problem with this is that the pads only cover less that half the surce area of the disc. Hence, when braking the disc wears away only a fraction of the pads and make the brakes less efficient. The caliper is a two hole mount.
Look forward to any repies. Kind regards.

 

[Robroy]

Sorry I can't help with your query but I just got a bike with disc breaks was about to start a new topic with the title " Disc Breaks"

Hope you don't mind me posting here but I just want to know if there anything you need to be aware of when taking the wheels off as I am told that " you need to be careful " if you don't do it right you will need to take it in to be reset

What does this mean?



Do you have to do anything different than when you are removing the wheels from a bike with break pad?



Many Thanks

 

[exemption64]

No.. Don't mind posing here. I'm no proffesional in resect to your post. So can't help. Sorry.

 

[exemption64]

This sounds great. Thankyou for the advice. I will see what I can find. Thanks again.

 

[Cheule]

Hi,

Apologies if I am in the wrong forum. This is my first post? Please can anone help!
My son's Apollo Demolition needs a new front brake caliper. Though I am finding it difficult to trace one that will fit. The existing front disc is a promax 160mm. I presently have a zoom 160 caliper fitted ,though the problem with this is that the pads only cover less that half the surce area of the disc. Hence, when braking the disc wears away only a fraction of the pads and make the brakes less efficient. The caliper is a two hole mount.
Look forward to any repies. Kind regards.

I have the same ones on my MTB (factory stock fitted) and they are useless as you say. Damn things won't align properly. User's advice = +1

 

[exemption64]

Got the bike secondhand. It had the original front caliper on when i got it. Though the pads where past their day. At the time, I did not think the pads could be replaced. I local guy fitted the present Zoom caliper. After a while when i had a beter look and got my head round it, I noticed the pads where only braking on less than half their surface area. Hence problems with braking and uneven wear on the pads. I don't really know which way to go now. A new caliper with pads is whats needed. But its finding the right size etc. Or, Splash out on a new bike!!

 

[exemption64]

Hi,

Already posted this in the general forum. But just incase I can get other points of view.

Apologies if I am in the wrong forum. This is my first post? Please can anone help!
My son's Apollo Demolition needs a new front brake caliper. Though I am finding it difficult to trace one that will fit. The existing front disc is a promax 160mm. I presently have a zoom 160 caliper fitted ,though the problem with this is that the pads only cover less that half the surce area of the disc. Hence, when braking the disc wears away only a fraction of the pads and make the brakes less efficient. The caliper is a two hole mount.
Look forward to any repies. Kind regards.

 

[MacB]

is it cable or hydraulic operation?

 

[exemption64]

Hi,

cable pull .

 

[MacB]

Well, I have limited disc experience, only the cable operated Avid BB7 road, but the frame mounting points should be setup that disc/caliper alignment is pretty set. If it's post mount, ie connects directly to frame with need of adaptor, then I'm not sure. If it mounts via an adaptor from the side then maybe you need a different adaptor.

I'll have a little nose into it as it may be possible to change the size of the spacers, but it's also important to set up the caliper porperly in the first place. I wouldn't necessarily trust that it was done right, these two resources are worth a look, official Avid BB7 setup:-


View: http://www.youtube.com/watch?v=x1kezXQVnLY


and a detailed explanation of how to get them setup immaculately:-

http://www.twowheelblogs.com/avid-bb7-disc-brake-set-and-tuning

even if you're using a different caliper it should be possible to get the gist of what you need from these two sources. As it's a MTB then it will have a longer cable pull so you would need the Avid BB7 MTB as a replacement caliper, that the black and red, not silver and red model. Just having a mess about taking them on and off is enough to gain a much better understanding. A big advantage of the BB7 is that both pads are adjustable not just one. I also did all the cable prep and used Goodridge compressionless outers to minimise any possible losses. As I haven't tried another way I don't know if it's overkill or not but I can certainly say that the slightest touch on my brake lever and the caliper begins to move. If there are any power losses then they are too small for me to spot by the naked eye.