Tektro M735, 4 Piston Front 180mm Rotor, 2 Piston Rear 160mm Rotor

Formed 6061 T6 w/ Integrated Crown, Disc Brake, Thru Axle

Formed 6061 T6 Oversize Aluminum Alloy Thru Axle Dropout, Disc Brake Specific, Powertube Integrated Battery

Bosch Performance Line Speed, 85Nm Torque, 28mph

Aluminum 27.5", Black Annodized, 25mm ID, Disc Specific, 32 Hole

The Class 3 Union 1 electric bike gets things done. Built on a sleek aluminum frame with internal cable routing, this eBike is powered by a Bosch Performance Line Speed motor and a powertube integrated 400Wh battery. The Bosch Purion on-board 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. Wide tires on 27.5-inch wheels take the sting out of rough pavement. With an integrated rack, and fenders, the Union 1 lets you cut through city traffic with ease and confidence.

Diamondback Union 1

A 650b aluminum frame commuter e-bike with upper mid-range components and tektro hydraulic disc brakes.

Frame	Aluminum
Suspension	Rigid
Fork	Aluminum
Wheels	650b Aluminum
Drivetrain	1 × 10
Groupset	Deore
Motor	Bosch 600W 85Nm mid-drive
Battery	Bosch 400Wh
Brakes	Tektro Hydraulic Disc

Frame	Formed 6061 T6 Oversize Aluminum Alloy Thru Axle Dropout, Disc Brake Specific, Powertube Integrated Battery
Fork	Formed 6061 T6 w/ Integrated Crown, Disc Brake, Thru Axle
Shock	*
Bottom Bracket	*
Headset	Integrated, Sealed Bearing
Stem	Aluminum Alloy 3D Forged
Handlebar	Aluminum Alloy 3D Forged
Saddle	Custom Ergo Performance
Seatpost	Aluminum Forged Head, 350mm Type: Rigid
Pedals	Shoe Friendly Urban Design, Resin Body
Grips	Ergo Comfort Control

Rear Derailleur	Shimano Deore M610, SGS
Front Derailleur	*
Crank	FSA Forged Aluminum for Bosch System
Shifters	Shimano Deore SL-M6000, 10 Speed
Cassette	Shimano, 11-32 tooth, 10 Speed
Chain	KMC x10e EPT, Ebike Specific
Brakes	Tektro M735, 4 Piston Front 180mm Rotor, 2 Piston Rear 160mm Rotor Type: Tektro Hydraulic Disc
Brake Levers	Tektro M735, 2 Finger Lever

Rims	Aluminum 27.5", Black Annodized, 25mm ID, Disc Specific, 32 Hole
Spokes	Black w/Silver Nipples
Front Hub	Formula, Sealed Bearing, Thru Axle
Rear Hub	Formula, Sealed Bearing, Thru Axle
Tires	27.5" x 2.4" Schwalbe Super Moto

Motor	Bosch Performance Line Speed, 85Nm Torque, 28mph
Battery	Bosch PowerTube 400
Display	Bosch Purion
Charger	Bosch 4A

2021 DiamondbackUnion 1

2021 Diamondback
Union 1