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Mounting brake to carbon fork, serrated washer?(9 posts)

Mounting brake to carbon fork, serrated washer?Triphop
Oct 27, 2003 7:57 AM
I did a search and was unable to find an answer...this may be painfully obvious to some, but I want to be sure I don't bugger up my new fork.

The Chorus brake has a serrated washer on the post, which is used to keep the brake in place when tightened. As this brake will be mounted on a carbon fork, should I remove the serrated washer? I would think so, as it will surely dig in and scratch the carbon surface, possibly damaging the forks integrity. Am I correct in thinking to remove the serrated washer?

Thanks for the help!
re: Mounting brake to carbon fork, serrated washer?divve
Oct 27, 2003 8:33 AM
For what it's worth there's a washer on my bike and it came like that from the factory.
Use it... it won't affect your fork either way... nm.russw19
Oct 27, 2003 10:20 AM
Use it... it won't affect your fork either way... nm.Triphop
Oct 27, 2003 2:51 PM
Well I am waiting for a response from Campy, which will probably never come...but I did contact Deda...their response was to contact Campy. Which puzzles me, as you would expect the maker of the carbon fiber part to know what is acceptable or not on carbon. I am sure they just don't want to take responsibility in writing if something fails...figures.

Thanks for the input.
It should be the fork makers callflakey
Oct 27, 2003 3:06 PM
But, its been my experience in setting up bikes with carbon frames and forks that you definitely need the serrated washer because the clearcoated carbon fiber is way too smooth of a surface and the caliper can pivot on the frame even when torqued to spec. The serrated washers will put some teeth marks in the clearcoat, but they are not deep enough to affect the future integrity of the frame or fork.
It should be the fork makers callTriphop
Oct 27, 2003 3:20 PM
That is what I thought!

This is my first go with carbon, so I wasn't sure if the washers would do actual damage beyond cosmetic. Thanks for relating first hand build experience.
Use it... it won't affect your fork either way... nm.russw19
Oct 27, 2003 8:15 PM
The danger of scratching a carbon fork is in scratching the steerer tube.... not the outside leg of the fork. That is simply the clearcoated area. If that area was that fragile, you wouldn't see carbon forks on the market. As soon as your wheel threw a pebble up, the fork would be compromised and the fork maker liable for the damages..... this is not the real world case. Your fork can take quite a bit of abuse before it fails. Don't be afraid of it.

Next, all that serrated washer is going to do is bite into the clearcoat on your fork to keep your brake from moving around. All it will do is leave an indentation in your clearcoat.

Again, if this minor of a scratch could destroy your fork, then there is no way that carbon forks could have made it to market.

Russ
Yes, use the serrated washerKerry Irons
Oct 27, 2003 6:21 PM
First, you need it to keep the brake in place. Second, it won't damage the fork. I've used the washer on my Time CF fork for 6 seasons and 45K miles with absolutely no damage to the fork or any other problems.
Thanks all.Triphop
Oct 28, 2003 2:05 PM
I figured it wasn't a big deal...but I wanted to be sure, as this is my first frame/fork made of carbon. I did not want to screw this up, too much $$ to make a simple mistake. Road stuff is just so much more fragile than my mtb gear, I figured I should make sure to do everything by the book.

I appreciate the insight. I'll post pics when its all finished...just waiting on wheels!