Technically, it is possible to ride a motorcycle with only rear brakes, but it is not recommended or safe. Motorcycles are designed to have both front and rear brakes for a reason. The front brakes provide the majority of the stopping power, as they contribute to the majority of the weight transfer and have more grip on the road.
Riding with only rear brakes can significantly reduce your ability to stop quickly and safely. It can lead to longer stopping distances, decreased stability, and increased chances of losing control during emergency maneuvers. In situations where you need to stop suddenly or avoid an obstacle, relying solely on rear brakes may not provide sufficient braking power and control.
The front brakes, when used properly in conjunction with the rear brakes, offer better balance, control, and stopping capabilities. It is important to maintain and regularly check both front and rear brakes for optimal performance and ensure your safety on the road.