GTA 5 dirt bike pc cheat is to simply type: OFFROAD. It has a bit of speed when needed and is easy to ride, but like a sports bike (if you don’t want to avoid a collision), you don’t need to pay 110% attention.
It’s not a completely blown sports bike, but again it’s not a regular cruiser. PCJ is probably the best motorcycle described as a perfect cross. Fastest Motorcycles GTA 5 Best Fully Upgraded Bikes Top Speed Bikes.