|The Giant Roam (2013) is a 29er that is good for electric conversion (only suitable with mini-motor). If your commute to work involves a fair bit of stop-starting and up and down curbs then an electric 29er is a good option. A 29er is essentially a mountain bike but with the slightly larger 700c rims. With slick tyres, it makes a very handy and fun electric commuting tool. Bike retails for $600, electric kit for $1050.