Multi-layered construction

Fits Thule square bars and round bars out of the box and Aeroblade/Aeroblade Edge with Xadapt2 (Sold Separately)

Shimano changed the industry - boosting not only power to the pedal

dust and harmful UV rays

Made of resistant plastic

Specialized SpeedZone ANT+ Digital Comp Bike Computer 2013 carbon Multi-layered constructionA high performance training tool with interference free, ANT+ digital wireless transmission of speed, cadence, and heart rate, all in a convenient, low profile package. SPECIFICATIONS: Display power from any power meter that uses an ANT+ signal. Five programmable power training zones. Five programmable heart rate training zones. Current speed, maximum speed, average speed. Odometer, trip meter. Auto stop, lap, and interval timer function. Speed