We love fat tires! Most ebikes at the last Interbike Expo have fat tires. Fat ebikes are getting very popular not just for the muscular profile but most importantly, for safety and comfort. Fat tires inflate from 5psi to 30psi for a "cushy" ride. And wider tires are more stable at higher speeds for the average rider. Fat tires will soon be the standard for most ebikes. If you are concerned about weight and rolling resistance, the 500-1000w motor and 48V lithium-ion battery make the drag negligible.