The rationale for using a wireless computer on a mountain bike is that a wire runs the risk of snagging on brush and branches. Which I buy in theory, but in practice I’ve never seen it happen.

In a wired computer, the CicloSport CM211 (www.ciclosportusa.com) gives you two-bike capability for $40 (or $20 at Nashbar!).

Hardtail mountain bike: Salsa Rangefinder Deore 11 27.5 Budget hardtail mountain bike: REI Co-op Cycles DRT 1.1 Full-suspension mountain bike: Revel Rascal V2 Regardless of whether you huck cliffs ...