Best GPS computers for mountain biking: find your way and record your rides - MBR
Garmin+Edge+1040+Cycling+Computer+-+010-02503-01 for sale online | eBay
KOM Cycling Computer Mount designed to be used with Garmin Edge Series - Compatible with a range of Garmin commuters including Garmin Edge 530 Mount and Garmin 830 : Amazon.co.uk: Sports & Outdoors