Light and Motion Urban 500
This – combo is the commuter-light setup we鈥檝e always dreamed of: it charges via USB, it has sidelights for better visibility in traffic, and the belt-strap mounts make it easy to take the lights with you when you get where you鈥檙e going. Bonus: the Urban 500 (pictured) is plenty bright enough to do double duty on techy singletrack.
Cateye Inou
Capable of overlaying photos and video with GPS data, the is an excellent tool for documenting rides. Hit record on the simple bar- or helmet-mounted cam to film as you go, then use the included software to create maps with embedded pictures and footage of the ride鈥檚 most memorable (or confusing) spots.
LeMond Revolution
Because the connects straight to your bike鈥檚 drivetrain (not the rear wheel), it provides the neatest bike interface of any trainer we鈥檝e tried. And though our neighbors weren鈥檛 enamored of the jet-engine roar, we appreciated the cooling airflow the fan and flywheel created. Bummer: at $440, the聽associated is pricey.
CycleOps PowerCal
Using a series of algorithms CycleOps created after evaluating thousands of riders鈥 data files, the extrapolates your power output from your heart rate. It鈥檚 approximately 10 percent less accurate than hub- or crank-based systems, but it also comes at a fraction of the cost.
Garmin Edge 200
Don鈥檛 need the cadence, heart-rate, or power data glut? The trim and simple collects the basics (elapsed time, distance, speed) as well as a GPS track of your ride, and it costs barely more than a cyclometer without GPS. Plus, it鈥檚 simple to install and nearly indestructible.
iBike iDash Phone Booth
Of the dozens of bike mounts we鈥檝e tested, the stem-bolt-utilizing is the most secure, weatherproof system we鈥檝e found. You can get the case alone and use your phone with any number of great apps (, , and , for instance) or buy the unit as an all-in-one that tracks speed, cadence, and heart rate ($330) and even power ($550).