All in One for Your Bike
GPS navigator audio speedometer all in one for your bike
Chose the Case
get a case for your mobile a plastic is better and make sure it keep your phone in place hard
Prepare the Hook
i don't know they names in English but its a 1/2'-1' using a knife make 2 cuts in the centre of the case about 1.5cm from each other
Finish
place your phone and hook it to the Bicycle handlebar and make sure to tight it hard. i use Samsung s health its more easy to use but there are a lot of apps that do the same job. have fan