pretty rare model here Misfit but as you'd probably know they were pretty much the same bike as the MC1-A (less the lights) I had an MC1-A many moons and they aren't a bad little bike at all, very overlooked like many of the early kwacks. The M came standard with knobbies and the rear guard while black was the same guard as the regular model excepting it had rubber blanks plugging the tail light mounting holes. I see some go on ebay from time to time (KD80's and KM90's) for very little money but never have I seen an MC1M on offer.