So....i'm looking to buy a 75-90hp sports bike (to be fast but not the big stuff with over a 100hp..) Which bike do you recommend i should get?

 

There is so many to choose from. You can stay small (depending on your height) or you can go up a gear. When you say sports bike, what bikes have you drivin to give me an idea on what may suit you. If you are tall you would be better staying away from the small sports bikes as they are not comforable for a tall person as they are pretty small and very light. With the bhp you have suggested there still is alot to choose from. Examples:
Honda NSR series. 80/125. CBR 250 and maybe the 400 depending on model.
Suzuki AR 80. RGV 250. GSXR 400 depending on the model.
Yahama TZR 80/125/250. FZR 400 depending on the model.
Aprillia Chesterfield 250. Extrema 250.
Check these out first and see which one you like if any. Like me i love the sports bikes but the super bikes are more my thing.

Drive safe.
Borg.