Zipp NSW rim turned brown

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Comments

  • ugo.santalucia
    ugo.santalucia Posts: 28,317
    dorin.boca wrote:
    however this is not a topic of braking style but about brown (dis)coloration of the NSW brake rims and whatever residue is left (that in my case rendered the braking quality to null in heavy rain). Cheers,
    dorin

    Consistent with being glazed rubber. Best thing is to ask Zipp, as you really don't want to have to clean your rims with solvents every time you go downhill. It might well be that these tangente pads are not the best pads for the job, although I suspect Zipp will never admit to that
    left the forum March 2023
  • sloppyschleckonds
    sloppyschleckonds Posts: 8,019
    dorin.boca wrote:
    noodleman wrote:
    dorin.boca wrote:
    ugo.santalucia wrote:
    While acetone might not damage the resin, it might dissolve your stuff and push it even further inside the carbon layer, as well as not... my problem is in terms of why do you want to clean your rims in the first place. It's paranoia that people hav,e that of clean rims. If there is dirt that can grind your braking surface away, then fine, but as I understand, this is a layer of "glazed" rubber, which is probably best left on the rim. Does the manual instruct to clean the rims with acetone regularly? If it does, then do it, if it doesn't, then don't bother

    As a fact the rear wheel gets more used on braking than the front one. I had the unpleasant experience almost at the end of my long descent during pouring rain where the rear brake was 100% useless. I mean the break lever was pulled to the max yet the rear wheel was still spinning (not skidding), I had to rely on the from wheel which still had some grip. What else than some grit left on the rims would explain this?

    I'd do anything to not have to go through that again (and pls don't say switch to DBs :)

    Strange that you think the rear brake is used more than the front. I've always used my front brake for the majority of my braking and it's the same in motorcycling. Using your rear as the main brake is surely asking for trouble?

    I'm using them more or less equally, but are you telling me if a car suddenly pulls in front of you, or a cat (regardless of the color) will you touch the front brake first? I use them more or less equally but in certain situations the rear is the first engaged, at least I do, however this is not a topic of braking style but about brown (dis)coloration of the NSW brake rims and whatever residue is left (that in my case rendered the braking quality to null in heavy rain). Cheers,
    dorin

    Front brake always 1st, occasionally the rear if desperate
    I'm sorry you don't believe in miracles
  • ryan_w-2
    ryan_w-2 Posts: 1,162
    Why aren't you using Zipps top of the line pads, their platinum pro evos? Amazing pads albeit with a short shelf life.
    Specialized Allez Sprint Disc --- Specialized S-Works SL7

    IG: RhinosWorkshop
  • dorin.boca
    dorin.boca Posts: 13
    Ryan_W wrote:
    Why aren't you using Zipps top of the line pads, their platinum pro evos? Amazing pads albeit with a short shelf life.
    I do, tried BlackPrince first but they're 100% useless in rain. The Tangente are way better (in rain) but wouldn't recommend any high speeds if you value your life :)
    I have mine for one month by now, almost 2'000k and they still look fine, not even close the the wear limit mark. I had 2 spare sets with me over the weekend as I was worried 4'000m descend will eat them through but they still look great, albeit I wasn't clutching the break levers until corners
  • thegreatdivide
    thegreatdivide Posts: 5,807
    dorin.boca wrote:
    Ryan_W wrote:
    Why aren't you using Zipps top of the line pads, their platinum pro evos? Amazing pads albeit with a short shelf life.
    I do, tried BlackPrince first but they're 100% useless in rain. The Tangente are way better (in rain) but wouldn't recommend any high speeds if you value your life :)
    I have mine for one month by now, almost 2'000k and they still look fine, not even close the the wear limit mark. I had 2 spare sets with me over the weekend as I was worried 4'000m descend will eat them through but they still look great, albeit I wasn't clutching the break levers until corners

    You guys are either terrible at descending or I'm sh*t hot at it* because I'm on my second set of PP Evos since I started using them in 2013 and I've ridden on my Zipps a lot!!!


    *TIC - although I am pretty good at it ;-)
  • ryan_w-2
    ryan_w-2 Posts: 1,162
    Lots of late braking and being over 105kg will kill your pads ;)
    Specialized Allez Sprint Disc --- Specialized S-Works SL7

    IG: RhinosWorkshop
  • dorin.boca
    dorin.boca Posts: 13
    And Zipp's answer on the browning

    "The brown color is pad material possibly mixed with some road grime. Go ahead and clean the braketrack with acetone"

    Little better but brown area still there...
  • philbar72
    philbar72 Posts: 2,229
    it'll stay there as well. I've got some 303's that have had a variety of pads rub against them. the wear is part grime and crud off the road glazing into the pad, I remember distinctly that the brakes on my old bike glazed and it was like I had about 1/4 the braking power because of this. the brake tracks on the 303's I have are fine though, they do discolour occasionaly.

    I'd also not recommend using the yellow pads from swiss stop. they are very soft and don't last.

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