https://thenextweb.com/gaming/2020/05/26/this-gta-v-mod-lets-you-ride-your-own-bike-around-los-santos/

With lockdown measures enforced around the globe, exercising indoors has had a bit of a boom — particularly indoor cycling. Online video game-like training platforms like Zwift have brought new realms of realism to the activity, but this ingenious GTA V mod has taken it to a whole other level.

In short, the GTBikeV mod lets you ride your real bike around GTA V’s massive virtual world, Los Santos, almost as if you were actually there. The mod allows you to connect your bike and smart trainer to the game, so as you pedal your indoor exercise bike, your in-game character explores the virtual world.