I test road one. I mainly rode it on the paved trail, but took it on some grass hill climbs. I rode with the 2wd option on to climb some steep grass inclines on the sides of the trail near their shop. Maybe it was me, but the 2017 with the Brose motor has more torque and climbs faster. I can't remember if the AWD had the same issue, but the Brose model doesn't use a wide enough bottom bracket. They kick the chain stays out for the wide tires, and with the narrower bottom bracket, the heels on my walking shoes clicked on the chain stays in my usual riding position. I didn't purchase either of them. I ride some speed Haibikes, and find that I really enjoy riding pavement above 20mph. I guess you're not supposed to ride a fat bike that fast, but I didn't enjoy the paved trail ride as much on these bikes.