Cervelo NP3 - routing the brake cable behind the stem

No I ran the cable housing all the way to the hidden side of the grommet and then used a second piece of housing from the grommet to the brake. I did put a ferrule on the piece inside the top tube. Believe it or not I was more concerned with cutting the grommet than the plastic insert. Weird, I know.

I guess it would be possible to cut the backside of the grommet and run full housing all the way back to the brake.

Yes, ran full housing from the rear brake lever all the way back to the rear brake. …it’s the only option if you route the brake behind the stem.

Got it - thank you so much!

Discussed it here back in 2014, there was a better diagram but it seems where that photo was hosted it had been taken down. Post 32 is where I show how it was routed, but others have discussed above how to do it. Shouldn’t be an issue as they mention.

https://forum.slowtwitch.com/forum/?post=5079974#p5079974

you can simply drill a bigger hole into the existing cable stop, ie large enough to pass the housing through
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Thank you - that outline of the brake cable routing was super helpful!

while that method works, it is a little :sticky" on smaller frame sizes, ie 48, hence my preference is drilling hole in back, cable ends up way less “sticky”
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My frame is a 58. Do you think that I’d be better off with routing under the cup vs drilling a hole in the back of the cup?

entirely up to you, can try non-drill method and see how it feels and decide if you want to change after that.

I did it without the drilling on my 58 - I did upgrade the back brakes to dura ace and that cleaned up the slack
.

Are you planning to run full length cable and housing?

That’s what i did to min and had zero issues and didnt’ have to drill anything

Yeah, I think that I’ll start with that and see how it works. My only hesitation is about taking the fork off which would mean disconnecting the front brake, which is kind of a pain with the alpha x setup that I have.

Before dropping the fork, you can try to feed the cable&housing from back to front. Make yourself a hook out of some clothes hanger or a wheel spoke to snag the cable up and out the opening. Then you can make a nice big loop down in the head tube and trim as necessary.

If you have a bike stand, trying using that with the bike upside down and let gravity bring it close to the top tube which should make it easier to grab.

Yeah, I think that I’ll start with that and see how it works. My only hesitation is about taking the fork off which would mean disconnecting the front brake, which is kind of a pain with the alpha x setup that I have.

Instead of disconnecting the cable from the brake, remove the brake from the fork. That way you keep the cabling in tact & can reattach afterwards.

Yeah, I think that I’ll start with that and see how it works. My only hesitation is about taking the fork off which would mean disconnecting the front brake, which is kind of a pain with the alpha x setup that I have.

Instead of disconnecting the cable from the brake, remove the brake from the fork. That way you keep the cabling in tact & can reattach afterwards.
If it’s an Omega X brake, you don’t have to disconnect the cable OR remove the brake. Just pop the wedge out of the brake (no tools required), then the brake and bars are decoupled. It’s a five second job and is super easy with the wheel removed.

It’s an older Omega - one gen before Omega X I think.