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2024 Orbea

DIEM 20

A 29″ aluminum frame commuter e-bike with high-end components and shimano hydraulic disc brakes.
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Manufacturer Price

£4,299($5,784)
FrameAluminum
SuspensionRigid
ForkCarbon
Wheels29″ Aluminum
DrivetrainBelt Drive, Internally Geared Hub
GroupsetGates CDX
MotorShimano 600W 85Nm mid-drive
Battery630Wh
BrakesShimano Hydraulic Disc
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Insights
Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full DIEM model range

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Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

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Reviews

Summary

The Orbea Diem is a stylish and high-quality commuter e-bike that excels in urban environments with its lightweight frame, dynamic motor, and intelligent design features. It offers a comfortable ride with its Diamond Glide frame design and urban geometry, though some reviews note a stiff ride quality on rough surfaces. The bike's high-performance components and elegant aesthetics make it a standout, albeit at a premium price.

Pros
  • Lightweight frames and components

  • High-quality components and attention to detail

  • Dynamic motor and precise handling

  • Intelligent lighting system for safety

  • Diamond Glide frame design for comfort

Cons
  • Stiff frame places more weight on your hands on long rides

  • Expensive

  • Lack of compliance on rough surfaces

Key Quotes
The Diem is not just a powerful tool for city riding, but a classy and trustworthy partner that you can count on every day.
Bikerumor logoBikerumor
The Orbea Diem is an incredibly chic and high-quality urban ebike that impressed us with its handling, offering plenty of agility in city traffic.
Downtown logoDowntown
The Diem capitalises on both its beguiling frame design and the combination of a high-performance mid-drive motor and automatic gear hub to make riding in most environments an absolute pleasure.
ebiketips
I’ve never had more non-cyclist folks comment on a bike than the Diem.
Velo logoVelo

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ebiketips
Orbea Diem 10

Apr 2025

Verdict: An impressive urban option from the Spanish brand, delivering more than meets the eye

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Velo
Review: The Orbea Diem Is an Excellent Coffee Shop Companion

Aug 2024 · Alvin Holbrook

Orbea's new e-bike is a real looker.

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Downtown
Test debut of the new Orbea Diem 20 urban ebike on Parisian boulevards

Jul 2024 · Benedikt Schmidt

Presenting the Orbea Diem, touted as “The new A to B.” Our test reveals how it fares on Parisian boulevards and beyond.

Highs
  • Intuitive handling

  • Very agile

  • Stylish design & high-quality workmanship on the frame

Lows
  • Lack of compliance

  • Expensive

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Bikerumor
Seize the Day with Orbea's New Diem a Lightweight, Urban eBike

Mar 2024 · Ron Frazelle

Spanish bike company, Orbea introduces their new commuter eBike, the Diem, their latest step forward on urban strategy.

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Geometry
Specs
Build
Frame

Orbea Diem Hydro High Polished 2024, Flex Tech, 135x9 / 142x12, Headset Routing, Custom Kickstand, Orbea Urban Cockpit and equipment compatible

ColorsSpaceship Green (Matt); Ivory White (Gloss); Glitter Anthracite (Gloss)

Fork

Orbea Diem carbon fork, full carbon, 1" 1/8 - 1" 1/5, post mount disc mount, Thru Axle 12x100mm, thread M12x1. Long mudguards compatible.

Handlebar

Orbea Urban, Integrated Light, Rise 54, Width 700

Saddle

Selle Royal Vivo Ergo

Seatpost

Alloy, 31.6mm, Setback 0

TypeRigid

Pedals

VP-537 Black

Groupset
Crank

Gates CDX 42t w/chainguard

Shifters

Microshift TN71 for Nexus Inter 5

Cassette

Gates CDX 34t for Shimano Inter 5e

Chain

Gates CDX Belt

Chain Guide

Gates CDS

Brakes

Shimano MT201 Hydraulic Disc

TypeShimano Hydraulic Disc

Wheels
Rims

Alloy, Tubeless, 25c, 32H

Tires

Vittoria e-Randonneur 50-622, Reflective band

Electric Components
Motor

Shimano EP600

Battery

Orbea Internal 630Wh

Remote

EN600-L

Charger

Orbea 2.Generation eBike Smart charger 42V/2-4A

Accessories
Lights

Front: Supernova Starstream Pure, Low Beam, Rear: Orbea Fender integrated, with alert light

Fenders

Curana Apollo Orbit 60mm

Racks

Front: N/A, Rear: Orbea RR-01 Alloy, w/Mik & Mik Side and Ortlieb QL3.1 system. Max. 20Kg

Bell

Knog OI Classic

Rider Notes
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First added March 11

Last updated November 3

Not listed for 180 days