I’m building up an old (‘89/90?) Klein Pinnacle. It is pre v-brake era and I’ve been down a rabbit hole on how to accommodate v-brakes using the internal routing. I can across these bolt on cable stops and hooked it up to one of the rear rack mounts on the seat stay.
Coincidentally, as I went to install the stop, the riv-nut that had been in there for probably close to 35 years sheared off. Not from over torquing, but what I am assuming is just old age/failure. I had to take the bike to the shop to have a new riv-nut pressed in but the mechanic who worked on it did not approve of this idea of mine. I guess I am looking for a second opinion here.
My fall back is to get a clamp-on cable stop and put that around the top of the seat tube bellow the collar bolt/above the top tube. Might not be as elegant, but wondering if that would be a better option. Appreciate any input or other ideas.
by johndiggity1
10 Comments
I don’t love it but I also don’t see a problem with it.
[Edit: Ignore me, I thought the cable was housed inside the frame] You shouldn’t need a cable stop at all for v-brakes. Does it flop around too much if you run the housing directly to the noodle? If so then you could just replace the rivnut then screw a p-clamp in at that point and loop it around the housing – that way it would keep the housing in check but not put any critical stresses through the rivnut.
Why was the mechanic concerned? The cable isn’t applying much of a torsional or shear load to the rivnut, indirectly a little but it’s pretty minimal. The strap is merely holding the housing in place. Try holding some housing in a position while you pull the brake lever, it’s not a big deal.
Anyhow, the solution seems fine. V brakes are a bit out of place on the bike, but this seems as good an option as any, and much better than just zip tying housing to the frame.
Edit: I didn’t realize/remember it was just liner. So, in that case the stop/rivnut is being stressed whenever you pull the brake lever, if the liner is just plastic. I don’t remember these that well. I do remember hating them…
I like the solution a little less and can see where the mechanic is coming from. I’d probably say the same in their shoes, but might also try this in yours.
Keep the bracket and use flexible noodle.
I think it’s neat
Get stick-on ziptie guides for full housing, put them over the stupid cable liner ports that were a terrible design 36 years ago, and ride it happily knowing you’ve vastly improved it over the original configuration.
What you’re doing in the picture is psychotic.
I have no idea what you have going on there, but I do know it is not correct. There should be continuous brake cable housing from where the cable exits the frame to the ferrule on the noodle. None of that should be anchored to the frame.
TBH for as much as I dislike cantis, I’d be inclined to just run one on the rear (if your levers can do it, anyway) in this case.
UPDATE: Appreciate all the comments and feedback here. I did a few test runs with the stop in various configurations and different lengths of housing and I just can’t seem to get enough torque on the bolt to keep the housing from eventually loosening it. As much as I feel invested in figuring this out, think I’m gonna bail and just go with cantis. I’d probably spend more money and time trying to find a solution for the v-brakes and I’d rather be riding.