Where can you find Fortnite bikes? Introduced during Chapter 4 Season 2, the Rogue is a supped-up version of the dirt bikes from Season 1, which remain in the game right now. They have great traction and a boost, allowing you to speed up hills and use them as ramps to pull off sick tricks. The points don't matter a great deal, but at least you can easily travel around off-road, and no matter the road surface, you can reach similar top speeds.
In the Fortnite map are the best places to look. The dirt bikes also have the distinct advantage of allowing you to shoot and drive simultaneously.
Fortnite bikes are not in set locations. They will appear anywhere a car can spawn, so it's unlikely that you'll see one in any place twice. They only have 550 health by default, far less than the cars, and they also offer virtually no protection. Unless you're trying to complete a challenge to get more experience, you're better off driving a car.
Fortnite Rogue bikes are just one of the returning things in Chapter 4 Season 3. Not only are there brand-new Fortnite raptors. While they're strong and relatively quick, they're no match for a Rogue bike's speed and coolness.