An urban electric bike with a stiff steel diamond frame, pared down to the essentials with purity of form; a clean aesthetic and a speedy ride.
Nimble and light, Upstart is the fastest way to get around. It features an automatic torque sensor, AUTORQâ„¢; an innovation exclusive to Momentum Electric. It measures your force on the pedals from the bottom bracket and sends that information to the controller which controls the 250W motor to provide assistance accordingly. The result is an intuitive ride and an excellent range from the 324Wh lithium-ion battery. It also comes with a SRAM Automatix two-speed shifting hub that changes gear automatically when at a certain speed, making an uncomplicated ride an absolute joy.
Upstart is the perfect choice if you like to keep things simple for life in the fast lane.