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

Multi-layered construction

Cargo Only Capacity: 12L / 700 CU IN

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

Injection-molded nylon composite sole with SlipNot™ rubber tread for moderate pedaling stiffness and phenomenal trail traction: Stiffness Index 6

Specialized SpeedZone ANT+ Digital Comp Bike Computer 2013 carbon Shimano changed the industry -A 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