Orbea Denna M30

The Orbea Denna M30 is aimed at the drop-bar rider who likes gravel geometry and wider tyres but doesn't want hilly, longer routes to turn into a grind. It's built around a mid-drive motor rather than a hub unit, so you keep the low weight and handling feel of a proper gravel bike while getting real help on the climbs and into a headwind. If you already ride an unassisted gravel bike and find yourself avoiding the toughest routes, or you're coming from a flat-bar e-bike and want a quicker, more direct riding position, this is the kind of machine that opens those rides back up.

Power that suits gravel, not just tarmac

The Denna M30's Shimano EP801 motor runs with Orbea's own RS Gen2 RC tuning, driven by a 420Wh battery built into the carbon frame. Shifting is mechanical Shimano GRX 1x12, with a 44t chainring, RX610 shifters, an RX822 GS rear derailleur and a wide 10-45t cassette, so there's enough range in the gearing to make proper use of the assistance on a long climb without a front derailleur to think about. Orbea quotes up to 3,500m of climbing from the battery for an average rider; that's a useful planning figure for how much hill a full charge can realistically absorb, but it's an upper-limit claim rather than a promised route length, and it will vary with rider weight, terrain and how much assistance you use.

Built for rough lanes as much as smooth gravel

Underneath the motor, this is still a carbon gravel bike in the way it's built for rough surfaces. The frame uses shaped absorption points to take some of the edge off broken tarmac and gravel, and it's paired with a full-carbon fork rather than an alloy one. Oquo Road Control RC25PRO wheels come fitted with Pirelli Cinturato Gravel H tyres in a 700\u00d745c size, and Orbea allows for tyres up to 50c if you want more cushioning or grip for rougher routes later. Braking is handled by Shimano's RX410 hydraulic discs on the current UK build; that spec is corroborated by a UK retailer rather than shown directly in Orbea's own published documentation for this exact configuration, so it's worth checking against whichever specific bike you're buying if brake spec matters to you.

Getting the size right

Orbea builds the Denna carbon frame in six sizes, from XS through to XXL, with a published height guide running from 155cm at the smallest end to 207cm at the largest. Cockpit parts change with the frame size too, with cranks, stem length and handlebar width all specified differently size by size, so the geometry and cockpit tables are worth checking properly rather than choosing on height alone.

Matching the build to the offer

Because this bike has been sold under more than one year label with different equipment, it's worth checking what's actually fitted rather than trusting the year on a listing. Earlier Denna M30 builds were specified with a 42t chainring, Shimano RX400 brakes and Vittoria Terreno Dry Gravel tyres; some UK offers labelled as a later year still describe that same earlier equipment. The current UK configuration covered here runs the 44t chainring, Pirelli Cinturato tyres and the corroborated RX410 brakes instead. None of this changes what the bike fundamentally is, but it does mean two listings calling themselves a Denna M30 can be genuinely different bikes underneath, and it's the equipment list rather than the year that tells you which one you're looking at.

What's fitted, and what's an optional extra

The standard bike runs on its 420Wh internal battery alone; Orbea sells a 210Wh RS Range Extender Gen 2 as a separate accessory for riders who want to stretch a day out further, rather than fitting it as standard. Control on the bar is through Orbea's EN600-L remote, with no separate handlebar display in the standard build, and there's no mudguard or front light fitted either, though Orbea's UK configurator lists a Curana Orbit mudguard set and a Supernova Mini2 light as options. Anyone planning to use this for all-weather riding or commuting is better off treating those as things to add rather than assuming they're included.

Ridden as specified, the appeal here is less about outright range and more about being able to keep riding proper drop-bar gravel routes on days you'd otherwise leave the bike at home, with the motor absorbing the extra effort that a loaded climb or a longer loop would otherwise demand.