If you need to know your cadence, you need a cadence sensor. The Sigma STS & ROX wireless cadence sensor for bike computers is the transmitter for most Sigma STS and ROX model bike computers, and is a perfect replacement for a damaged or missing sensor.
Note: This cadence sensor is not compatible with the ROX 10.0.
Monster Scooter Parts is your best source for top-quality bike parts and accessories.
⚠ WARNING California Residents:
Proposition 65 Warning