If you can figure out how to charge a 305 while on tour... they are pretty reasonable. $179 at Costco and I think the same at Bestbuy. Does not include the cadence but does include heart rate. Can always add cadence.

Link http://www.costco.com/Browse/Product.aspx?Prodid=11467635&whse=BC&topnav=&browse=〈=en-US

I don't think it would be all that great on tour................ but damn sure would be nice around the home front. Love to have all that cool data from my training and group rides on the roadie.