Well I ordered the groovy liner tubing, plus cables, sheathing, sealed ends, bar tape etc. for two bikes and then had my RD cable fail on this a.m.'s ride. The end got buggered and jammed in the lever, so I had to take it apart. Fishing the cable was pretty easy with string and Gorilla tape. No magnets. I replaced the front too. The old sheath left fibery stuff all over the cables. Don't know what brand it is and there was a mix of Shimano and Jagwire hardware on the ends, but it's got to go.