No top cases or racks were available in the USA when I purchased my 2021 T9 so I ended up buying a SHAD 45 and rack for the T9. Got it right away. Since then I purchased a SH34 top case and the SHAD click lock 9L tank bag.
I was browsing at the dealer last Monday and they have a 2024 T9GT+ on the floor. Well I just had to throw a leg over it and found that it comes with the comfort seat as stock. Hmmm, it feels good and supportive of the sit bones. So I asked if I could order one for my 2021, however, no comfort seat is listed in the USA. On a hunch we checked the accessory list for the 2024 and the seat is available in the USA so I bought one. It's mounting is identical to all T9s.☺️