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Diamondback

Diamondback Union 1

With the ever-increasing options of e-bikes, it can be difficult to decide which one would suit you best. We’ve analyzed four expert reviews and created a guide that tells you everything you need to know about the Union 1 E-bike.

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Diamondback
Price: $
3500
Type:
eBike
Brand:
Diamondback
Class:
Release Year:
2021
Brakes:
Hydraulic Disc Brakes
Drive:
Mid-Drive
Frame:
Aluminum
Country:
United States
Suspension:
Yes
Rating:
4.1

Basics

Gears
10
Max Range (km)
89
Max Range (mi)
55
Top Speed (kph)
45
Top Speed (MPH)
28
Watts
400
Weight (kg)
24.0
Weight (LB)
52.9
Weight Capacity (kg)
120.0
Weight Capacity (lb)
264.6
Wheels
2
Wheel Diameter (in.)
27.5
Wheel Diameter (mm)
699
Wheel Width (in.)
2.4
Wheel Width (mm)
61

8 Reasons to Buy the Union 1

  • Minimalist design
  • Has an integrated rear rack and fenders.
  • Designed for rapid acceleration (even in Eco mode)
  • Comes with powerful Bosch technology systems
  • Has a respectable range for fully loaded traveling
  • Riding is made easy with a simple, intuitive display
  • Comes with strong Tektro stoppers and dependable Deore shifting
  • The extra weight may act as a barrier to theft

5 Reasons Not to Buy the Union 1

  • Weighs a lot (51 pounds)
  • Might be challenging to manage in crowded areas
  • Does not suit riders under the height of 5' 6"
  • Deore shifting is loud and rough, and Tektro stoppers lack finesse
  • Comes with budget cockpit parts that add weight

Use Cases

Commuter
Urban

Features

Rear Rack
Fenders
Chain guard
Kickstand
Integrated Taillight
Headlight
LCD Display
Bosch Performance Line

Bottom Line

The Union 1 is a great addition to the Diamondback line with its stellar performance and some amazing commuter-friendly features. However, for someone who is new to e-biking, it might be a bit difficult to get into muscle memory because of its heavy weight and some budget-minded components.

Scores

Ride Quality
4.5
Build Quality
3.5
Design
4.0
Value
4.5
Total
4.1

Reviews

Wired

Minor glitches aside, the more I rode the Union 1, the more I appreciated its appeal as an alternative to my car.

Ride Quality
Build Quality
Design
Value
Total
4.0
3.0
3.0
4.0
3.5
Pedal with Power

If I wanted an e-bike to mainly commute to work or school or to get where I need to go fast, then this would be it.

Ride Quality
Build Quality
Design
Value
Total
5.0
4.0
4.0
5.0
4.5
Wired

True to Diamondback’s claims, it’s ideal for getting things done.

Ride Quality
Build Quality
Design
Value
Total
5.0
4.0
5.0
5.0
4.8
Feed the Habit

For someone like me…, who wants to add non-sweaty bike commuting into my lifestyle, the performance at this price point is just stellar.

Ride Quality
Build Quality
Design
Value
Total
4.0
3.0
4.0
4.0
3.8

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