…and not in response to any particular previous comment.
The model letter suffix for dirt bikes sometimes implies something about their mechanical design; Historically WR stands for Wide Ratio with reference to the gear ratios fitted, WR offering a variation in speed between each shift that is greater than would be experienced on a CR (Close Ratio) ride. WR is often associated with Enduro or Scramblers where speeds are consistently high, CR is suited for Motocross where rapid accelerate through the gears is desirable.
Not a convention but more history, I’d be guessing that SF equates to Street Fighter, DS to Dirt & Street and SF to Street Fighter.
My driver license would never survive a SuperMoto (SM ?
on public roads, the urge to pull catwalks would be too great 😮 😮
