Zipp NSW rim turned brown

mtbrider123

My nsw rim for some reason turned brown. Does anyone know why, and how can this be removed?
(Wheel and break pads were both brand new)

Image: https://ibb.co/hiJJev

Thanks

sloppyschleckonds

WTF are those disco slippers

ugo.santalucia

It's fine, probably from your pads... leave them alone...

Re. the blue shoes... they are all the rage now, a friend of mine has them in green

fenix

Sweet shoes. Have you been doing long descents on the Zipps ?

mtbrider123

I don't know what is a long descent for you but any wheel should be able to perform well on any descent, especially a 454. It's strange as this (brown stuff) is only on the front wheel

cougie

Have you tried washing it off ? Or is it heat build up ? I've heard of people warping wheels with too much braking.

ugo.santalucia

Front wheel takes more of the braking... it's probably pad residue. I wouldn't worry the slightest

thegreatdivide

ugo.santalucia wrote:

Front wheel takes more of the braking... it's probably pad residue. I wouldn't worry the slightest

This

mtbrider123

ugo.santalucia wrote:

Front wheel takes more of the braking... it's probably pad residue. I wouldn't worry the slightest

Don't think that it's pad residue as it's brown and pads are grey. As mentioned before, it looks like the wheel is overheating from lots of braking. Any suggestion on how to remove the brown stuff or anything else that I can do?

mtbrider123

cougie wrote:

Have you tried washing it off ? Or is it heat build up ? I've heard of people warping wheels with too much braking.

Tried washing it off but no success. It's probably the wheel overheating from lots of braking. Any suggestion on how to remove the brown stuff?

Joeblack

Try a hard eraser (as in pencil eraser) it's time consuming but I removed the yellow residue on my mavics this way before I bought black pads.

mfin

Mtbrider123 wrote:

I don't know what is a long descent for you but any wheel should be able to perform well on any descent, especially a 454

Mtbrider123 wrote:

Tried washing it off but no success. It's probably the wheel overheating from lots of braking.

mtbrider123

Joeblack wrote:

Try a hard eraser (as in pencil eraser) it's time consuming but I removed the yellow residue on my mavics this way before I bought black pads.

It's not that... I had yellow residue on my mavics too and it removed it by switching to Zipp cork pads, no eraser was needed. The brown stuff is not residue from pads, it looks like the wheel got overheated

cougie

So that's just what I said then. What kind of descent was it ?

thegreatdivide

Are you using the supplied Tangente Platinum Pro Evo pads?

ugo.santalucia

If you are unhappy,talk to Zipp directly... they did come back to me in the past and I was not even a customer.

I still think it is pad residue, maybe overheated and burnt pad residue... it doesn't necessarily come off easily... it's not that when you burn stuff on your glass kitchen top it then comes off easily. I don't think there is a damage to the resin, otherwise you would feel it as you brake.

We tend to over-worry about carbon, it's pretty tough stuff, expecially the good quality one

mtbrider123

cougie wrote:

So that's just what I said then. What kind of descent was it ?

My first day was without any descent, and I've noticed the brown stuff. After that I tried all kinds of descents but nothing got better/worse (thought that the brown stuff can be erased by braking)

mtbrider123

thegreatdivide wrote:

Are you using the supplied Tangente Platinum Pro Evo pads?

Yes

mtbrider123

ugo.santalucia wrote:

If you are unhappy,talk to Zipp directly... they did come back to me in the past and I was not even a customer.

I still think it is pad residue, maybe overheated and burnt pad residue... it doesn't necessarily come off easily... it's not that when you burn stuff on your glass kitchen top it then comes off easily. I don't think there is a damage to the resin, otherwise you would feel it as you brake.

We tend to over-worry about carbon, it's pretty tough stuff, expecially the good quality one

Thanks, I'm going to write to them and see what they'll say.

dorin.boca

Mtbrider123 wrote:

ugo.santalucia wrote:

If you are unhappy,talk to Zipp directly... they did come back to me in the past and I was not even a customer.

I still think it is pad residue, maybe overheated and burnt pad residue... it doesn't necessarily come off easily... it's not that when you burn stuff on your glass kitchen top it then comes off easily. I don't think there is a damage to the resin, otherwise you would feel it as you brake.

We tend to over-worry about carbon, it's pretty tough stuff, expecially the good quality one

Thanks, I'm going to write to them and see what they'll say.

Hi there, I have the exact same issue, first I used the black prince, after having heart attack on a rainy day I switched to the supplied Tangente was way better but the brown area remained, I had two long descends (each combined to 4'000m, longest stretch 2'200) at the last one was raining hard and in the end the rear wheel was useless only the front braking worked. I'm on my way back home now, will try to clean the residue with some acetone and wash the pads as I'm not happy at all with today's breaking quality.

Wonder if the brown shiny is actually the resin "rotting" away...

Cheers,
Dorin

ugo.santalucia

dorin.boca wrote:

Mtbrider123 wrote:

ugo.santalucia wrote:

If you are unhappy,talk to Zipp directly... they did come back to me in the past and I was not even a customer.

I still think it is pad residue, maybe overheated and burnt pad residue... it doesn't necessarily come off easily... it's not that when you burn stuff on your glass kitchen top it then comes off easily. I don't think there is a damage to the resin, otherwise you would feel it as you brake.

We tend to over-worry about carbon, it's pretty tough stuff, expecially the good quality one

Thanks, I'm going to write to them and see what they'll say.

Hi there, I have the exact same issue, first I used the black prince, after having heart attack on a rainy day I switched to the supplied Tangente was way better but the brown area remained, I had two long descends (each combined to 4'000m, longest stretch 2'200) at the last one was raining hard and in the end the rear wheel was useless only the front braking worked. I'm on my way back home now, will try to clean the residue with some acetone and wash the pads as I'm not happy at all with today's breaking quality.

Wonder if the brown shiny is actually the resin "rotting" away...

Cheers,
Dorin

With acetone you will do more damage than good.. you've been warned

They're your wheels and do what you want, but I suggest you don't use solvents

dorin.boca

With acetone you will do more damage than good.. you've been warned

They're your wheels and do what you want, but I suggest you don't use solvents

But how com Zipp shows in their videos to use acetone to clean when you replace the decals. I thought is shouldn't, not at visible level anyway, I use it frequently when cleaning rc planes/jets.

I did write to Zipp abt the coloring/acetone/ and my inexisting break in the rain. I'll report back

dorin.boca

dorin.boca wrote:

With acetone you will do more damage than good.. you've been warned

They're your wheels and do what you want, but I suggest you don't use solvents

But how com Zipp shows in their videos to use acetone to clean when you replace the decals. I thought is shouldn't, not at visible level anyway, I use it frequently when cleaning rc planes/jets.

I did write to Zipp abt the coloring/acetone/ and my inexisting break in the rain. I'll report back

I noticed Reynolds and Enve both recommend using acetone to clean the rims. Zipp does it in the instructions to clean the decals, wonder why did you state acetone may damage the rims?

Best,
Dorin

turbotommy

The only reason I'd be careful using acetone is because you don't want it anywhere near your decals unless you want to remove them.

I'd assume most people using tubs would use one solvent or another to clean them up? I know I do and haven't had any problems. Including 2 sets of zipp wheel.

dorin.boca

TurboTommy wrote:

The only reason I'd be careful using acetone is because you don't want it anywhere near your decals unless you want to remove them.

I'd assume most people using tubs would use one solvent or another to clean them up? I know I do and haven't had any problems. Including 2 sets of zipp wheel.

NSW dont have decals, are embedded

thegreatdivide

Acetone will be fine on the wheels.

ryan_w-2

Use acetone / nail polish remover on my 2016 404s with no problems at all.

ugo.santalucia

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

dorin.boca

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 break 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

noodleman

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?

dorin.boca

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