Here is a link for Hudz rubber donuts at Amazon, cable liner is also available.
https://www.amazon.com/Hudz-HiTech-C...07865&sr=1-248
Many contemporary bikes with exposed rear brake cables have them in place. For what you are wanting the inner liner will work better, if you don't have any cable pieces, check with an LBS or Co-op for drops or old cables you can pull the liners out from. If you are in bad need of some liner, shoot me a PM and I'll strip out a decent length from some drops I have in the spares and send it to you. Looks like you have a pretty nice bike there.
I have stainless steel cables on all three bikes, and things get cleaned out regularly, including the liner sections beneath the BB shell of my Tommasini. Its better than letting the Derailleur cables saw on the BB shell.
Bill
__________________
Semper Fi, USMC, 1975-1977
I Can Do All Things Through Him, Who Gives Me Strength. Philippians 4:13
Last edited by qcpmsame; 07-10-17 at 11:43 AM.