You want a confined shear-type cutter for wire rope - that is what bike cable is, small wire rope. The Felco or Park tools are good. I have the Felco. I also have a cutter-crimper made for super-heavy wire fishing leaders, this works too, as it cuts the same way. If you plan on working with modestly larger wire rope, car parking brake cable, big dog tie outs, etc., the HKP cutter crimper, or an import clone from HFT or Fastenal would do bike cable, too, but at c. 24" it's a 2-hander and awkward on the smaller sizes.