mash

Mash is not just about people riding bikes, 'any old' bikes, there's no 4 year old kids in it with stabilisers
Mash(to me atleast) is about the development and growth of fixed wheel riding which ultimately has stemmed from the couriers who ride them and I'd say most if not all the guys that were in the vid have been couriers at some point

I'm not disagreeing with you on this...