Has anyone used foam for internal cable routing for those bikes without built-in channels? I'm wondering if there is a hardware store option or do we need to be ordering from online bike-shops? Also, do folks feel like it works in reducing cable rattle? I've got a frame swap coming and am wondering if I should both investing in the time/effort.
-Gord
you could use low expansion foam for windows and doors if you're worried about putting any pressure on the frame.
No, but if I did, it would include a thin wall plastic tube around the cable housing so the housing could be replaced.
I used the jagwire foam on my recent build, It doesnt hurt and weighs basically nothing so I figure why not. Just install the housing then slide the foam over, cut the foam to length, then install the housing port.
Single speed. No brakes. Problem solved.
My latest bike came with foam tubing stock, cables in frame are completely silent. Also made changing rear brake hose much easier as it guides the hose right through.
Took my other older bike out for a ride for the first time in a long time recently. Inside the down tube the hoses are wrapped as best I could and it's also stuffed with zip tie arrays and foam pieces and I forget what else, and it's rattly as fuck compared to my newer bike with proper foam tubes.
It’s insulation foam you can get from many plumbing and also computing/electrical supply stores by the metre. Like many things cycling it’s just rebranded generic product with an absurd markup.
Thans
Posted by: Heinous
It’s insulation foam you can get from many plumbing and also computing/electrical supply stores by the metre. Like many things cycling it’s just rebranded generic product with an absurd markup.
Thanks, I assumed so, but haven't been able to find anything that small at the big-box hardware stores so I was wondering. I'll look into a more specialized shop.
Back in the 1980s I had a steel frame with internal cable routing. To fix the rattles I used expandable insulation foam. But when I took the frame to a welder to repair it, the foam caught on fire.
I am not a fan of internal cable routing (top tube routing with a Roach Pad is way classier).
Hardware store expanding spray foam sounds like a bad idea on so many levels.
Posted by: syncro
you could use low expansion foam for windows and doors if you're worried about putting any pressure on the frame.
Having spent the last four hours of my life trying to route two cables and a brake through a new carbon road frame, I would never, ever, ever fill a frame with spray foam.
What I did was buy some long tubular shoelaces. I cut the ends off and slipped a cable through each one like sock, then slid the cables through the frame. I also taped the lace at each end so it wouldn't slide down.
It worked for me.
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