2010 CFMoto Jetmax 250 Scooter

[bikerdoc]

And you have to ask, why would you change belt size mid way through a model run?

R&D and QI from first models released e.g. second and later generation Jetmax brakes also have small design revisions. Same goes for the 650NK and 650TR, second and subsequent models have subtle modifications compared with the first generation model(s).

Not much different than most other manufacturers, often making subtle design modifications between model years. The Suzuki Burgman 650 is one clear example where between 2003-2012 modifications were made 'on the inside' some subtle, some more substantial. However looking at the Burgman 650 from the outside, nothing looks any different. Major changes clearly evident from the outside seen from the 2013 model Burgman 650 onwards. Yamaha have done the same with the Super Tenere XT1200 from 2010-2013, but made changes from 2014 onwards, some subtle and some more so.