I have the 90mm hydrogen's on a set of baats frames and love them! Thuro has a sale on them and they are a great shop, run by skaters for skaters.

That said, I also have a set of these: https://www.amazon.com/KSS-Outdoor-Asphalt-Formula-Inline/dp/B01GOEJGOG/ref=mp_s_a_1_3?dchild=1&keywords=inline+skate+wheels+80mm&qid=1574295146&sprefix=inline+skate+whee&sr=8-3 on my k2 r80 frames, and they are a lot better then I expected them to be. For the price it's certainly a nice option to have.