Common sense, koxx will be a better bike as it is a higher spec, monty is 650 brand new and the koxx is 1000 brand new, also the koxx has an eno which is 85 quid alone and also a chris king headset. My mate has the monty, he likes it but it is quite heavy compared with the koxx. IMO the koxx will definately be a better bike but its all down to opinion, second hand is the way forward though, so much more bike for your money.