Sigma R3 Speed / Distance / Heart Rate Transmitter - Black Pull_Dual Weight: 130 g

Weight: 130 g

Max Bike Size - 29"

simplified assembly and maintenance: Ultra-Torque™

Ultra-shift synchronisation: the sprocket tuning allows for maximum shifting performance without hesitation: fast

Rotor: Centerline

Sigma R3 Speed / Distance / Heart Rate Transmitter - Black Pull_Dual Weight: 130 gSigma R3 Speed Distance Heart Rate Transmitter 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