The COROS Bike Speed Sensor measures speed and distance straight from the wheel, so your numbers stay accurate on an indoor trainer, in deep woods or anywhere GPS struggles. It fits to the hub of either wheel, pairs over Bluetooth with your bike computer, sports watch or phone, weighs 17g and runs for up to a year on a coin cell.

Features

• Measures speed and distance without needing GPS
• Ideal for turbo trainer sessions and tree-covered trails
• Pairs via Bluetooth with most bike computers, sports watches and training apps
• Compact design mounts to the front or rear hub
• Up to 12 months from a CR2032 battery
• IP67 water rating

Specification

• Mounting: front or rear hub
• Connectivity: Bluetooth (not ANT+ compatible)
• Battery: CR2032, up to 12 months
• Water resistance: IP67
• Weight: 17g
• Not compatible with most indoor spin bikes