183 rotors on 185 set up

nels
nels Posts: 250
edited January 2011 in MTB workshop & tech
my credit card got the better of me and allowed me to get hope red float rotors 183/160. currently running 185/160 avid g3. is it just a matter of getting the washers and spacing right on the caliper and mount ??

all advice welcomed.
Nels
Nels

Trek Fuel EX9
Giant Defy1
Rockhopper SL Expert

Comments

  • bennett_346
    bennett_346 Posts: 5,029
    New adapter needed
  • aaronmroach
    aaronmroach Posts: 341
    edited January 2011
    Yep new adapter required.

    Or you could have the adapter youve got shaved by 1mm on the top mounting surface??

    cheaper to get a new adapter!!
  • bennett_346
    bennett_346 Posts: 5,029
    The washers are specifically there to align the caliper so remiving or changing the order of them will not work.

    We all make mistakes :P
  • peter413
    peter413 Posts: 5,120
    Try it and see if it works, it is only 1mm of a difference after all
    Transition Patrol
    Cube LTD 29er

    Glentress Trailfairies
  • ride_whenever
    ride_whenever Posts: 13,279
    You need a new adaptor for the rear (obviously) you may get away with running the front one but make sure the pads are fully on the braking surface so you don't end up with a lip on them.

    Also you're aware that you usually have to file the tabs off the brake pads on the juicys to get them to work with hope rotors.
    Neeermad
    Carbon 456
    456 lefty
    Pompino
    White Inbred
  • nicklouse
    nicklouse Posts: 50,675
    nels wrote:
    my credit card got the better of me and allowed me to get hope red float rotors 183/160. currently running 185/160 avid g3. is it just a matter of getting the washers and spacing right on the caliper and mount ??

    all advice welcomed.
    Nels

    1mm is bugger all. you could replace the washers with ones from a set of V brakes as one half is IIRC a bit thiner than the Caliper one.

    other option is a file on the front adaptor.

    or just leave it and see how it is.

    Be aware that if your Avid brakes (presuming this here) have removal tags that point towards the hub you will most likely have to bend them or remove them.

    and you will not notice any improvement in braking.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • nels
    nels Posts: 250
    ride_whenever whats this about filing tabs?? running elixir 5 . ..

    i thought a rotor was a rotor, just different sizes ?? Naive or what.
    Nels

    Trek Fuel EX9
    Giant Defy1
    Rockhopper SL Expert
  • nicklouse
    nicklouse Posts: 50,675
    nels wrote:
    running elixir 5 . ..

    never said at the start.

    the juicys had removal tags that cause problems with Hope Floaters.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • ride_whenever
    ride_whenever Posts: 13,279
    It isn't an issue for the elixir 5's
    Neeermad
    Carbon 456
    456 lefty
    Pompino
    White Inbred
  • nels
    nels Posts: 250
    thanks all for input.

    will look for replacement adapter 183mm black...
    Nels

    Trek Fuel EX9
    Giant Defy1
    Rockhopper SL Expert
  • flymoripper
    flymoripper Posts: 7
    I personally wouldn't bother with a new spacer. For the 2mm of extra braking surface it's not really a problem. Only when the pads wear and the lips on the edge of each touch when braking is it time to get the file on the brake pads!

    Well, it's cheaper than a new bracket :wink:

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