Sigma

Sigma Computer Sts Spd+Cad Kit Bk2.

- STS speed transmitter

- STS - cadence transmitter

- For Bike 1 and Bike 2

- 3 canals digit coded

- transmission system

- Less power cinsumption

- Quiker actualisation of the data

- For BC 12.12 STS, BC 16 12 STS
BC 1909 HR, BC 2209 MHR ROX