With the rear brake lever applied fully, you shouldn't be able to push your motorcycle...?

When the rear brake lever is fully applied, the brake system is designed to create friction on the rear wheel, effectively preventing it from moving. This is an important safety feature that ensures the motorcycle remains stationary, especially when it is parked or when you are preparing to start from a stop.

If you could push the motorcycle at all while the rear brake is fully engaged, it would indicate a malfunction or insufficient brake performance, which could lead to serious safety risks while riding. Therefore, being unable to push the motorcycle at all signifies that the brakes are functioning properly and holding the bike securely in place.

The other options suggest varying degrees of movement that would compromise the effectiveness of the rear brake. For a motorcycle's safety and operational integrity, it is crucial that the brakes can effectively immobilize the bike when applied. This principle is fundamental in motorcycle operation, especially when managing stop-and-go scenarios or ensuring stability while parked.