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I'm building up a road disc bike with Spyres, similar set up to my cx. On the cx, yokozuna compressionless outer made a noticeable difference so I want to do the same again but the yokozuna cable I used previously is silly expensive now.
Any alternatives you can recommend? TIA
Aluminium tubing on the straight sections
Jagwire works for me.
Make sure you do a good job on the outer cuts.
Jagwire cable tends to have linear stranded wire rather than coiled and is advertised as compresssionless. The Ripcord stuff they sell made a massive difference to a set of BB7’s on a mtb. It’s also internally lived and the ferrules are o-ring sealed as far as I can remember. Might be worth seeing if they have an equivalent road version.
Oh,and as good as the Yokozuna were,I always thought they were a bit too stiff.

Used Alligator i-links for gear cables a lot* and always wondered what they would be like for mech discs .
* Just cause I liked the look 🙂
Jagwire and Ashima working fine here.
The TRP own brand kit is pretty damn good, installed some on my CX bike with Sypres and the improvement was noticeable
Goodridge are good, but can't find a seller since Chain Reaction have stopped selling them - they were heavily discounted, so I ordered 5m and guess-what, I got 5x 1m lengths (the muppets)
Cool. Thanks everyone. Lots of options to look into
The Gusset stuff that Charlie the Bikemonger sells.
You leave Charlie's gusset out of this.
I found the jagwire ripcord stuff to be pretty good, long lasting and effective.