A motorcycle top box presents an interesting problem - how to control the motion?
The CSH-63 is a detent hinge which holds things opened or closed - it has a damped version too.
Strong springs allow the S-AT to make a lid feel weightless
A damped hinge like the HG-JH14-50 gives great refinement of movement.
The ultimate in control - a constant torque or friction hinge like the HG-TS is entirely predictable and reliable.