Orbea Diem 20 20MPH
In stock at 2 shops in Salt Lake City and Los Angeles
Prices and stock checked Oct 22.
Where to buy
2 shopsAbout this bike
The 2027 Orbea Diem 20 is a premium urban e-bike that makes every A-to-B a pleasure. Built on Orbea's aluminum Diamond Glide frame with a full-carbon fork and powered by a Shimano EP600 motor with an integrated 630Wh battery, it pairs effortless long range with a clean, quiet, low-maintenance belt drive and fully integrated lighting.
Show full description and specs
Shimano Full-Power Assist
The Shimano EP600 drive unit delivers up to 85Nm of torque with smooth, quiet, natural-feeling assistance, flattening hills and keeping you fresh on every commute. The 630Wh battery is built into the downtube for a clean, balanced, theft-resistant package, with an optional 252Wh range extender for even bigger days. As a Class 1 (20 mph) pedal-assist e-bike, the Diem 20 is street-legal on the widest range of paths and bike lanes.
Clean, Quiet Belt Drive
The Diem 20 runs a Shimano Nexus Inter-5 Di2 electronic 5-speed hub paired with a Gates CDX carbon belt - shifts are at the touch of a button, even at a standstill, and the sealed hub and grease-free belt run clean and silent for years with minimal maintenance.
Designed-In Safety & Comfort
The patented Diamond Glide frame flexes vertically to absorb bumps, while wide Schwalbe Marathon tires smooth out rough streets. Integrated StVZO wraparound lighting keeps you seen day or night, and an integrated kickstand, Spinblock steering limiter, USB-C charging and AirTag-ready mount round out a city bike that's as practical as it is polished.
- Available in three colorways
- Spaceship Green, Ivory White, and Anthracite Glitter - in sizes S-XL.
Key Features
- Shimano EP600 full-power motor (up to 85Nm) with integrated 630Wh battery
- Class 1 / 20mph pedal-assist e-bike
- Aluminum Orbea Diem Diamond Glide frame, full-carbon fork
- Shimano Nexus Inter-5 Di2 electronic 5-speed hub with Gates CDX carbon belt drive
- Shimano MT200 hydraulic disc brakes
- Integrated StVZO wraparound lighting, front and rear
- Integrated kickstand, USB-C charging, AirTag-ready
Build Kit
- Frame
- Orbea Diem Aluminum 6061, Diamond Glide
- Fork
- Orbea Diem full carbon
- Motor
- Shimano EP600 (up to 85Nm)
- Battery
- Orbea Internal 630Wh (optional 252Wh range extender)
- Display
- Shimano EN500
- Drivetrain
- Shimano Nexus Inter-5 Di2 electronic 5-speed hub
- Belt
- Gates CDX carbon belt drive
- Brakes
- Shimano MT200 Hydraulic Disc
- Crank
- Shimano Steps
- Wheels
- Alloy, 32H
- Tires
- Schwalbe Marathon 50-622, reflective
- Seatpost
- Alloy, 31.6mm
- Handlebar
- Orbea Urban, integrated light, 720mm
- Lighting
- Integrated StVZO wraparound front and rear
- Sizing
- Orbea recommended rider height by size (approximate):
- S: 153-172 cm (5'0"-5'8")
- M: 164-183 cm (5'5"-6'0")
- L: 176-195 cm (5'9"-6'5")
- XL
- 187-204 cm (6'2"-6'8")
Frequently Asked
- How fast is the Orbea Diem 20? This is the Class 1 version with pedal assist up to 20 mph (a Class 3 / 28 mph version is also offered).
- What motor and battery does it use? Shimano EP600 (up to 85Nm) with an integrated 630Wh battery, plus an…
