Ok, it’s important to note that many bikes in TT would struggle to wheelie (under power) in real life. With that being said, PD has failed to develop the physics engine/wheelie selection algorithm to an acceptable level for TT’s retail release.
Some notable cockups:
No wheelies for the powerful sporty naked bikes!
-Triumph Speed Triple
-Kawasaki Z1000
-MV Agusta Brutale 910
(The above bikes are some of the easiest machines to mono in existence.)
-The CBR1000RR and the CBR 954 can’t wheelie on tarmac, though they will do it easily on grass! CBR600RR wheelies in first three gears.
-The Hayabusa won’t wheelie.
-The Motards can’t wheelie, and hence they’re pretty much useless.
I’ve been keeping a list of the wheelie machines, and I’ll upload it at a later point.