Forum home Mountain biking forum MTB workshop & tech

Disc Brake Setup

keeps21keeps21 Posts: 23
edited July 2008 in MTB workshop & tech
I've just fitted my new Clarks twin pot hydraulic disc brakes to my bike.

It's a 203mm front rotor, with a 203mm adaptor on the mount.

I'm a bit concerned with the actual contact area on the disc.

Please see the images below, you can see the wear marks where the pad contacts the disc. Should it contact more of the disc than it is, there is a good 5 mm on the iner edge of the rotor that tha pads do not touch.

Should the pads be contacting the rotor closer to its center?


  • nicklousenicklouse Posts: 50,675 Lives Here
    i would not be concerned, but i would get that cable routed better.

    the adaptor came with the brakes?
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • keeps21keeps21 Posts: 23
    Yeah that's the adpator that came with the brakes.

    The hose is quite a bit too long, it's in no danger of touching the wheel, or catching on anything the way it is now. But I would like to shorten it.

    But it's braided hose. Is there an easy way to cut it, or is it a LBS job?
  • tjmtjm Posts: 190
    The danger is that it catches on undergrowth. personally I'd try to get it as close the the fork as possible and keep all the spare up by the bars somewhere.
    Braided hose is not a problem as long as you have decent hose cutters. The only challenge is doing it without getting air in and having to bleed the system. But it is possible with care.

    Are the wavy tips of rotor clear of the pad swept area? If so then you have nothing to worry about. Even if you wanted to you will probably find that you cannot get the pads much closer to the centre without the rotor tips hitting the caliper body.
  • keeps21keeps21 Posts: 23
    Yeah the tips of the rotor are clear of the pads. By a few mm at the outer edge of the tip.

    So something like this - ... delID=3971 - would work fine on a braided hose?
  • tjmtjm Posts: 190
    no problem then (as Nick said to start with...)

    yes, they should be fine. I used the ones out of this kit on my hope braided hose...
  • keeps21keeps21 Posts: 23
    Thanks very much for your help and advice guys :)
  • I have the same set up for my wifes bike, 185 rotor set. The problem i'm having is the CABLE LENGTH. It has factory crimps in the lever end that are non-servicable and need replacing, are the fittings from other makes interchangle when reducing the cable length as the originals are not available due to being a new product and they have been released a little early imo.
    I'm wondering if Shimano or other makes of end fitting will do the job?
  • tjmtjm Posts: 190
    I'd have thought you could get something like a Goodridge kit if you are stuck but you would have to check with them for compatibilty.
  • Been to a specialist dealer, had no luck with shimano, hope or magura fittings so mine are going back and i'll be looking for another set.
Sign In or Register to comment.