Diamondback Union 1 2021
Bike details
Key information split into simple groups.
Bike summary
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Category
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Frame Aluminum
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Wheels 27.5"
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Groupset Deore, FSA
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Suspension Full
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Motor Bosch 250W 63Nm mid-drive
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Battery Bosch PowerTube 400
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Brakes Hydraulic Disc
Recommended size guide.
MD
165cm - 177cm
LG
175cm - 188cm
XL
185cm - 198cm
Parts list
Main components, grouped by system.
Bike components
Frame
Frame
Formed 6061 T6 Oversize Aluminum Alloy Thru Axle Dropout, Disc Brake Specific, Powertube Integrated Battery
Suspension Fork
Formed 6061 T6 w/ Integrated Crown, Disc Brake, Thru Axle
Rear Shock
*
Drivetrain
Rear Derailleur
Shimano Deore M610, SGS
Front Derailleur
*
Shift Levers
Shimano Deore SL-M6000, 10 Speed
Cassette
Shimano, 11-32 tooth, 10 Speed
Crank
FSA Forged Aluminum for Bosch System
Bottom Bracket
*
Chain
KMC x10e EPT, Ebike Specific
Pedals
Shoe Friendly Urban Design, Resin Body
Wheels
Front Hub
Formula, Sealed Bearing, Thru Axle
Rear Hub
Formula, Sealed Bearing, Thru Axle
Rims
Aluminum 27.5", Black Annodized, 25mm ID, Disc Specific, 32 Hole
Spokes
Black w/Silver Nipples
Tires
27.5" x 2.4" Schwalbe Super Moto
Brakes
Brakes
Tektro M735, 4 Piston Front 180mm Rotor, 2 Piston Rear 160mm Rotor
Brake Levers
Tektro M735, 2 Finger Lever
Cockpit
Stem
Aluminum Alloy 3D Forged
Handlebar
Aluminum Alloy 3D Forged
Grips
Ergo Comfort Control
Headset
Integrated, Sealed Bearing
Seat
Saddle
Custom Ergo Performance
Seatpost
Aluminum Forged Head, 350mm
Motor & Battery
Motor
Bosch Performance Line Speed, 85Nm Torque, 28mph
Battery
Bosch PowerTube 400
Remote
Bosch Purion
Charger
Bosch 4A
Fit data
Numbers for sizing and ride feel.
| Size | MD | LG | XL |
|---|---|---|---|
| Stack Reach Ratio | 1.5 mm | 1.49 mm | 1.5 mm |
| Bottom Bracket Height | 288 mm | 288 mm | 288 mm |
| Front Center | 663 mm | 673 mm | 689 mm |
| Rake | 50 mm | 50 mm | 50 mm |
| Trail | 77 mm | 73 mm | 74 mm |
| Stack | 608 mm | 619 mm | 638 mm |
| Reach | 404 mm | 415 mm | 425 mm |
| Top Tube Length | 591 mm | 606 mm | 621 mm |
| Seat Tube Angle | 73 ° | 73 ° | 73 ° |
| Seat Tube Length | 430 mm | 480 mm | 530 mm |
| Head Tube Angle | 70 ° | 70.5 ° | 70.5 ° |
| Head Tube Length | 160 mm | 170 mm | 190 mm |
| Chainstay Length | 466 mm | 466 mm | 466 mm |
| Wheelbase | 1121 mm | 1131 mm | 1147 mm |
| Bottom Bracket Drop | 65 mm | 65 mm | 65 mm |
| Standover Height | 746 mm | 782 mm | 816 mm |
| Wheels | 27" | 27" | 27" |
| Rider Min Height | 165 cm | 175 cm | 185 cm |
| Rider Max Height | 177 cm | 188 cm | 198 cm |
About this model
Union 1 is a Diamondback E Union model. 6 e-bikes variations carry this model name so far. You can get a glimpse at all models from 2021, by clicking on this link.
Model range prices
The most economical model, the Diamondback Union 1 2021 has a starting price of 3500$. Diamondback Union 2 2021 on the other hand is the most expensive at 4100$.
Safety
Take safety seriously when you ride your bike, and always wear your helmet. Moreover, don’t ride on the sidewalk. This is actually against the law in some states and can be dangerous for both you and pedestrians.
Crosscountry e-bikes average price
Our math shows that the average cost of a dependable Crosscountry e-bike is 2453$. However, you could also get a good Crosscountry e-bike even if you pay a lower amount than the average price. To sum up, when you purchase your e-bike, make sure to check if it has reviews, and also do some components research.
Furthermore, this bike was made available in 2021 for 3500$. Comparing the average cost of a Crosscountry e-bike to this one, you will see that Union 1 price is 42.68% more expensive.
Union 1 components
Fork material
The fork on this e-bike is made out of aluminum, which doesn’t add too much extra weight to the e-bike. However, it is not so stiff as steel or carbon forks are.
Wheels
As for the wheels, Diamondback Union 1 2021, has a 27.5″ aluminum model. 27.5″ wheels will reach higher speeds than smaller-sized wheels. However, the 27.5″ wheels are less forgiving than the 29″ wheels.
Brakes
When you want to stop the bike in time, the brakes are vital. The Union 1 has Hydraulic Disc brakes. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, these are ideal for anyone.
Sizes
There are 3 sizes available for this model. Rider height can be anywhere between 165 cm – 198 cm (5.41 ft – 6.5 ft). In conclusion, you won’t have a problem finding one that suits you.
