The MapFour Roam is a 34 kg all-terrain electric bike designed for versatility, whether for daily commutes, long rides, or off-road adventures. It features a 250 W central motor with 100 Nm of torque, a 720 Wh battery, and 27.5-inch wheels. The bike includes front and rear suspension systems, with a 100 mm front fork and a 60 mm rear shock, making it suitable for rougher terrain. Additional accessories like a rack, lock, and tool kit are included, and it uses a carbon belt drive from Michelin and a Shimano Nexus 5-speed hub. The frame is made of aluminum, offering a balance of strength and lightweight performance. Upon delivery, the Roam is partially assembled, requiring users to install the front wheel, complete the fender, attach the pedals, and make some adjustments. A connected module and a dedicated MapFour app are included, allowing users to monitor battery status, track mileage, control lighting, and use locking features. The app also supports geolocation, geofencing, and real-time GPS tracking, and it enables automatic unlocking when the user is near their smartphone. The Roam’s control interface provides five assistance modes—Eco, Tour, Auto, Sport, and Turbo—combined with the five mechanical gears from the Shimano hub. Eco and Tour modes require more rider effort, while Auto is ideal for a balanced ride. Sport and Turbo modes offer greater motor assistance, making it easier to climb steep hills. In ideal conditions, the bike claims a range of up to 150 km in Eco mode, though real-world testing showed 42% battery remaining after 65 km, depending on terrain and assistance level. The Roam performs well on a variety of surfaces, including roads, cycle paths, forest trails, and even some sandy terrain, though it struggles in loose sand. Its stability and tire performance are notable, but its 34 kg weight can make it less convenient to ride without motor assistance. It is compatible with Engwe’s repair network and shares the Mivice X700 motor with the Engwe E26 3.0 Pro, though it is priced around 700 euros higher.