Is it possible to customize the Bee with bigger rims & tires (ex. 22-26"), extended handlebar, neck stem, seating, etc.? I am 6.2ft. and the bike seems a bit small for me. I currently ride a larger mtn bike, 29" with extended stem and layback seat post. I fits comfortably with no margin for reduction. I am interested although would rather not make a $4000 mistake.