Mmm-mmm. So what did we see?

Magni
Maino
Mali
Malvern Star
Marin
Marinoni
Mariposa
Mars
Martelly
Masi
Massey Harris
McBain
McLean
MecaCycle
Medici
Meral
Mercian
Mercier
Merckx, Eddy
Merida
Merlin
Merz
Mesa, Raul
Metropole
Miele
Mikkelsen
Mirella
Miyata
Monark
Mondia
Mondonico
Mongoose
Montagner
Moser
Motobecane
Moulton
Muddy Fox
Murray