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1 Year Warranty

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Shipping to Your Doorstep - 1 Year Warranty - 14-Day Returns

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Diamondback Union
$1,849$3,000 new-38%

Delivery in less than a week

Secure payment in up to 4 installments without fee

Certified by professional mechanics

1 year warranty


Diamondback's Union 1 e-bike has an aluminum frame with internal cable routing that keeps the look very sleek. It's powered by a Bosch Performance Line Speed motor and an integrated 400Wh battery. The Bosch Purion onboard computer lets you focus on the important things with a minimalist design but the data you need at the touch of a button. A 10-speed Shimano drivetrain fine-tunes your pedaling, while Tektro hydraulic disc brakes keep your speed under control.

Brand Diamondback
Model Union
Color Grey
Year 2018
Mileage 1 mi
Size XL (ideal for people between 6 ft 1 in and 6 ft 8 in)
Seat tube 54 cm
Weight 51 lb
Usage City, Leisure, Speed Bike
Condition The bike is in very good condition. Some light scratches on the frame and components
Max speed 28 mph
Electric specifications
Battery From origin
Battery capacity 400 Wh
Engine brand Bosch
Engine model Performance Line Speed
Engine location Frame
Engine torque 85 Nm
Assistance type Pedal
Mechanical specifications
Wheels size 27.5"
Tires Schwalbe Super Moto-X (62-584)
Brakes Disk | Hydraulic
Transmission brand Shimano
Transmission model Deore
Number of speeds 10

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Can I get my electric bike delivered anywhere in the US?

Yes! We currently deliver everywhere in the Lower 48. Deliveries usually take between 24h and 72h in the North East, while we deliver in a maximum 8 days to the rest of the country.

Is my electric bike under warranty?

Yes! A professional bike mechanic has repaired, inspected, and certified your electric bike, meaning we are happy to offer a 1-year warranty on the battery, the motor, and the electronics. If you experience any problems within the next 12 months after your purchase, please contact us via email:

Does the price include sales taxes? 

No. Your sales taxes will be calculated at check-out and vary per state. Meanwhile it is possible that you don't see any sales applied to your purchase. Indeed, Upway being a brand new business in the US, we are required to charge sales taxes only as from a determined level of revenue collected per state. If you have any questions, don't hesitate to reach out at or via our chat.

Diamondback Union

Diamondback Union

$1,849$3,000 new