In the ever-expanding universe of green transport solutions, cargo e-trikes are steadily claiming their space as a sustainable and efficient alternative to conventional delivery vans. However, one of the inherent limitations of these three-wheelers has been the chain-drive drivetrain, which often restricts their design and functionality. Enter the Yakbike, a groundbreaking cargo e-trike with an electronic drivetrain, engineered by Swiss mobility company Shematic.
Drivetrain reimagined
The Yakbike fundamentally deviates from traditional e-trike designs by dispensing with the need for a chain or belt. Unlike typical models where the chain-drive limits the layout, the Yakbike places its crankset directly in line with its flat-fronted cargo bed. This innovative design becomes possible because of its stepless electronic drivetrain. When the rider pedals, it turns a generator, which then charges the battery, ultimately powering two 250-watt rear hub motors.
Stability and maneuverability
Another distinct feature of this e-trike is its unique front-end design that leans into corners for enhanced stability, while the rear end stays upright. Achieving this would have been complex with a traditional chain or belt-drive system.
Power and range
The two rear hub motors generate 170 Nm (125 lb ft) of torque each and can propel the Yakbike to a top electric-assisted speed of 25 km/h (16 mph). The trike comes with a standard single 2.6-kWh lithium-ion battery that provides a range of 80 km (50 miles). An optional second battery can extend this range to 150 km (93 miles). To further optimize battery life, the Yakbike is equipped with a regenerative braking system.
Additional features
For enhanced safety and ease of use, the Yakbike comes loaded with hydraulic disc brakes, a full LED lighting system complete with turn indicators, an electronic differential, and a throttle mode that aids in pushing the trike or when starting up from stops. The trike weighs approximately 70 kg (154 lb) and can accommodate a maximum payload—both rider and cargo—of 350 kg (772 lb).
Pricing
Starting at 12,900 Swiss francs (approximately US$14,645), the base model of the Yakbike offers pickup-truck-like functionality. Buyers can also choose from various optional rear cargo modules, such as a large Yakbox delivery box, a trash bin, an organic waste bin, and a pallet carrier.
In summary, the Yakbike addresses some fundamental design and functional limitations found in traditional cargo e-trikes. Its innovative electronic drivetrain not only eliminates the need for a chain but also paves the way for more adaptable and stable trike designs. The Yakbike may indeed be setting a new standard in the world of cargo e-trikes.
Source: Yakbike
