Once you have the top master Ref: H0CX56ST on your bike you can install any of our top cases.
Note: Direct fit with TR48, TR37, SH59X, SH58X, SH50, SH48, SH46, SH45, SH40 (Cargo) & SH39. For use with SH37, SH34, SH33, SH29 and SH26 a mounting plate D1B40PAR is required.
Love the top box and it mates well aesthetically with my Honda CB500X. Just one issue - the locking mechanism is a bit flimsy.
As for waterproofing, I rode in a downpour during a trip for 4+ hours and the box was bone dry. During the trip, we also found out that the 40L will hold 30 cans of beer ;)
Overall, a good box!