Sigma R3 Comfortex+ Transmitter & Chest Belt - Black Brake Levers Reduced outer shell volume for

Reduced outer shell volume for reduction in:

to prevent your bar tape from slipping

Vittoria Clincher: Wear resistant tread with low rolling resistance

Mount type: Post mount (PM)

Efficient cable routing for light shift operation compatible with shorter chain stays increased traction range for long-travel and active rear suspension

Sigma R3 Comfortex+ Transmitter & Chest Belt - Black Brake Levers Reduced outer shell volume forSigma R3 Comfortex Transmitter & Chest Belt Black The R3 transmitter enables you to measure your speed, distance and heart rate in a single device. The SIGMA STS Run wireless technology sends digitally coded data packages to the receiver within the running computer. All in One SPEED DISTANCE HEART RATE The R3 transmitter uses an integrated three axis acceleration sensor to measure acceleration throughout the run and accurately measure speed and