I have been using this specific top case for more than a year, having traveled approximately 10,000 km on a tracer 9 with a corresponding GIVI base. It did not create any stability issues even with a heavy load (around 15 kg), even at speeds higher than 120 km/h. It is very spacious and functional, suitable for everyday use and for trips.

Quite a good top case. It is spacious enough for two full face helmets but there seems to be a noticeable difference in driving compared to without a top case. Sturdy and durable construction. Maximum capacity of 10 liters and maximum speed of 120km/h. Due to its strong construction, I believe it can handle more weight, but I haven't tested it yet at speeds over 120km/h. The top case belongs to the MONOKEY category, so be aware that it is specifically designed for larger motorcycles due to its weight (as it is of higher quality than the MONOLOCK ones). Just note that it requires the e251 lid from GIVI and if you need a base, you will need the M5 (depending on your motorcycle, of course). It's not just the price of the top case, but also the additional items needed for installation in your motorcycle. Also, calculate extra expenses for the installation of the base (M5) and the plate (E251).