The ability to share your efforts on the game to Strava is already in the game. To get started saving Strava Fit Files, click on the User icon in the top right corner of most screens, then choose Profile. Click on Data Handling (4th tab along top), followed by the Connect button to be redirected to Strava where, after sign in, it will walk you through the connection process. Your Fit File will then be saved and uploaded to Strava each time you ride.
You can also upload the game's Fit Files manually to other applications. From your Profile, under Data Handling, make sure the Save Fit File Locally box is checked. After you complete an activity physically, look for the FIT file in the drive on which the game was installed, in Program Files/Smash Your Fitness/Rides.
For more help, contact Support@SmashYourFitness.com