Polar Verity Sense Optical Heart Rate Sensor 4iiii NOTE: The Spider is only

NOTE: The Spider is only suitable for SRAM DUB Powermeter Ready cranks with 8-bolt mount

Quicker workouts - greater the calorie burn

Folds flat for easy storage

Changes will take effect upon posting to our website

Polar Verity Sense Optical Heart Rate Sensor 4iiii NOTE: The Spider is onlyDelivery in 1 2 business days (Republic of Ireland) Delivery in 3 5 business days (Europe) Polar Verity Sense is an optical heart rate monitor that provides you with maximum freedom of movement and multiple options for viewing and recording your workouts. Thanks to Bluetooth, ANT+ and internal memory, you can either connect Polar Verity Sense to a sports watch or app to see your workout in real time or record your workout in the internal memory and