An urban electric bike with a aluminium diamond frame, distilled 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.
Listed in the independent A to B magazine's electric Bike Top10 and reviewed in their issue 92, Upstart's reviewers report it "leaves all the clunky dérailleur bikes searching for gears, and will outpace most electric bikes too". Not only was it reviewed as blindingly fast for a 'legal' bike, the Upstart was also deemed as "damned efficient: you put human and electric power in at one end, and road speed comes out the other.
At the heart of Upstart is our automatic torque sensor AUTORQ system; an innovation exclusive to Momentum Electric. It measures your effort on the pedals and intelligently controls the 250W motor to provide assistance accordingly. The result is an intuitive ride and an excellent range from the 374.4Wh lithium-ion battery.
Upstart also boasts a SRAM Automatix gear hub. This two-speed automatic shifting hub changes gear automatically at a certain speed and does away with manual gear shifting. Coupled with the AUTORQ system, it makes cycling uncomplicated and an absolute joy.
Upstart is the perfect choice if you like to keep things simple for life in the fast lane.
Quick / Light / Simple
Motor Bafang front hub 250W 40Nm
Battery 36V 10.4Ah 374.4Wh Samsung cells
Sensor AUTORQ automatic torque sensor system
Display LED display
Frame Aluminium Al6061 diamond frame
Drivetrain SRAM AUTOMATIX 2 speed automatic shifting
Range 45 km - 80 km
Sizes 54.5 cm / 58 cm
Weight 18.3 kg
Waterproof protection Electric components: IPX5
Mechanical components: Rustproof
Warranty Electric components: 2 years
Frame: 5 years
Spare battery MSRP £350
Spare charger MSRP £35
What’s new? • Lighter, quieter and more powerful motor
• Lighter and faster responding torque sensor
• Redesigned robust waterproof battery case
• Larger capacity battery with Samsung cells
• Smoother programme
• More robust display
• AXA battery lock (online key replacement)
• Stainless steel and thicker gauge spokes
• Rustproof chain
• Mudguard and lights as standard
• Lighter aluminium frame with mount points
• Comfortable saddle and grips
• Chainring guard
• Reflective wall tyres
• Rear pannier rack as option
• Adjustable stem
• Forged aluminium seat post
• Made in a BSCI certified factory
Please note that due to the weight and over sized delivery box of electric bikes, shipping costs will be calculated based upon your delivery postcode and advised after your order is confirmed, or upon request.