Norton RCW588/F1?

[Vini]

Would it be possible to create those rotary engine bikes in GPB?

[matty0l215]

Would it be possible to create those rotary engine bikes in GPB?

Technically yes, you can make any engine curve even a Wankle engine.

Just get the sound and you're there.

[Dodd68]

Being a Brit bike NUT!! I would be all over this...

[Hawk]

I'd love to see the rotory engine JPS Norton bike created for GPB! 

Hawk.

[HornetMaX]

If I recall correctly, even the longitudinal crankshaft (instead of the usual transversal one) is supported.
So if you get an idea of the rotational inertia this thing has, you're good to go.