The Fat Tire Cargo Bike Trailer is perfect for packing in large items and packing out game meat on your electric bike. The cargo cart is only as wide as the bike itself, making it easy to maneuver in tight areas. The trailer comes with BOB axle attachments compatible with all electric bikes. Designed for the ultimate backwoods excursion. The single-track fat tire cart allows the rider to access rougher terrain and narrower trails. The trailer follows tight to the bike. Its lower profile allows for more cargo weight. The trailer is compatible with quick-release, rear-wheel bikes, with drop-out sizes: 175-190mm.