My guess is that being 80-90 lbs lighter with more hp and torque, less wind drag than previous 1800s the new 1833 Wing would have out run, may be run circles around our old out dated 1800s. Some where after the 01 Wing Honda changed to larger radiator and fans. Honda it seems may have repeated the same first year model foe paws again.
Edit:The new Wings fans now blow out the sides rather than forward out the front as the old 1800s did.