if you're a fat bastard like me and many others, be sure to check the maximum permissable load rating (bike weight plus you and gear) of the bike before you drop your hard earned..you may be pushing the motor and electronics outside of its design capacity, which will lead to overload and possible burnout and may void your warranty(you know, that thing where clever lawers try to fuck you over with that GOTCHA moment!)..when I purchased mine, Giant had the highest at 156kg, so with a 23kg bike, that gives you 133kegs to play with from standard...start fitting coil shocks, E rated tyres, extra electronicals like lights and stuff, all this needs to be considered
BigS levo's were pretty renowned for burning out their motors, not sure if much has changed, but don't be that guy!
A BigS Levo SL, is probably left to the SL rider, as calorie enhancements may push that rating well into the red, a Kenevo on the other hand may suit...do your research not your dough!