In the main menu go to the 'Tune' tab then select 'Tune' again. From there change any detail, I chose tyre pressure and increased from 30.0 PSI to 30.5 PSI. After you have finished tuning press the
button to bring up the setup manager menu, click 'apply, save and share' which is the third option down. Chose a save name, then chose two appropriate keywords before sharing.
Achievement should pop after it has done sharing.
Hope that helps anyone who is having trouble