Connect the Forerunner device to the bicycle and collect data on your cycling performance. Very suitable for multi-sport training. The Forerunner connects to the bicycle rack easily and quickly and enables a smooth transition from running to cycling. Compatible devices: Approach® S1 Approach® S2 Approach® S3 Approach® S4 Approach® S5 Approach® S6 Approach® S60 Approach® S62 Approach® S62 Bundle D2 Air D2Bravo D2Charlie D2Delta D2Delta PX D2Delta S DescentMk1 DescentMk2 DescentMk2i DescentMk2S Enduroepixfnix® fnix® 2 fnix® 2 Special Edition fnix® 3 fnix® 3 Sapphire HR fnix® 5 fnix® 5 Plus fnix® 5S fnix® 5S Plus fnix® 5X fnix® 5X Plus fnix® 6 fnix® 6 - Pro Solar Edition fnix® 6 Pro and Sapphire fnix® 6 Solar fnix® 6S fnix® 6S Pro and Sapphire fnix® 6S Pro Solar fnix® 6S Solar fnix® 6X - Pro and Sapphire Editions fenix® 6X - Pro Solar Edition fnix® Chronos Forerunner® 10 Forerunner® 110 Forerunner® 15 Forerunner® 210 Forerunner® 220 Forerunner® 2