Product Details
The Orbea Denna M31e 28mph is an adventure-ready electirc-gravel bike built for riders who believe the best rides begin where the pavement ends. Designed around a smooth-riding OMR carbon frame with carefully engineered flex points, the Denna delivers comfort and control on everything from washboard gravel to remote double track. Wide tire clearance, a powerful motor, and stable geometry combine to make it your ultimate ride companion, wherever the horizon may lead.
Gravel-tuned geometry and balanced weight distribution make the Denna predictable and composed on technical terrain. At the same time, its Shimano EP8-RS motor, tuned with Orbea’s own RS Gen2 RC firmware, offers intuitive assistance to flatten climbs and extend your adventure. Whether you're chasing summits or pushing the limits of distance, Denna turns every route into an opportunity.
The integrated 420 Wh battery offers a lightweight and long-range power solution, while the optional 210 Wh Range Extender fits neatly into a bottle cage, adding hours of additional ride time. Combined with the wide tire clearance (up to 50c), size-specific geometry, and Orbea’s carbon monocoque fork, Denna is designed to keep you rolling comfortably and confidently, no matter what lies ahead.
Key Features:
- OMR Carbon Frame – A lightweight and compliant gravel frame paired with the Shimano EP8-RS motor, featuring Orbea’s proprietary firmware for smooth and powerful assistance.
- Shimano EP8 Motor with RS Gen2 RC Tuning – Optimized motor performance delivering natural, responsive support tailored for gravel riding.
- SRAM Rival XPLR eTap AXS 12-Speed Drivetrain – Precision wireless shifting with a wide gear range designed for mixed-terrain versatility.
- Oquo Road Control RC25TEAM Wheels – Durable, lightweight wheels built for confidence and speed on gravel surfaces.
- 420 Wh Battery with Optional 210 Wh Range Extender – Integrated battery providing long-range support up to 2.5 hours in Eco mode, with an optional lightweight extender (sold separately) for even longer rides.
| Specification | Detail |
|---|---|
| Frame | Orbea Denna, Thru Axle 12mm x 142mm rear, thread M12xP1, internal cable routing |
| Fork | Orbea Denna OMR ICR, full carbon, 1-1/8" - 1.5" tapered head tube compatible, Thru axle 12x100mm, thread M12xP1 |
| Steerer Tube | FSA 1-1/2" Integrated Aluminium Cup |
| Battery | Orbea Internal 420Wh |
| Range Extender | N/A |
| Motor | Shimano EP801 |
| Display | N/A |
| Charger | Orbea 2nd Generation eBike Smart Charger 42V/2-4A |
| Remote | EN600-L |
| Chainring | Alloy EP8 42t |
| Crank | Shimano Steps EM600 |
| Shifters | SRAM Rival eTap AXS |
| Cassette | SRAM XG-1251 XPLR 10-44t 12-Speed |
| Rear Derailleur | SRAM Rival XPLR eTap AXS |
| Chain | SRAM Rival 12-Speed |
| Chainguide | Orbea eBike chainguide |
| Handlebar | Easton EC90 AX Carbon, flare 16º, Di2 internal routing |
| Stem | OC Road Performance RP10, -8º |
| Brakes | SRAM Rival eTap AXS |
| Brakes Configuration | N/A |
| Wheels | Oquo Road Control RC25TEAM |
| Tyres | Vittoria Terreno Dry Gravel G2.0 TLR 700x45c |
| Front Wheel Axle | Orbea Thru Axle 12x100mm M12xP1 Hollow |
| Rear Wheel Axle | Orbea Thru Axle 12x142mm M12xP1 Solid inner threaded |
| Seatpost | OC Performance XP10 Carbon, 27.2mm, Setback 0 |
| Saddle | Selle San Marco Shortfit 2.0 Start Up Off Road Xilite |
| Mudguard | N/A |
| Handlebar Tape | Orbea Anti-Slippery/Shock Proof |
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Seat Tube (C-T) | 405 | 438 | 471 | 504 | 537 | 570 |
| Top Tube (EFF) | 531 | 542 | 558 | 570 | 587 | 599 |
| Head Tube | 110 | 131 | 152 | 178 | 199 | 220 |
| Chainstay | 425 | 425 | 425 | 425 | 425 | 425 |
| BB Drop | 78 | 78 | 78 | 76 | 76 | 76 |
| BB Height | 284.5 | 284.5 | 284.5 | 286.5 | 286.5 | 286.5 |
| Wheelbase | 1030 | 1033 | 1040 | 1054 | 1061 | 1068 |
| Head Angle | 70º | 70.5º | 71º | 71º | 71.5º | 72º |
| Seat Angle | 74.5º | 74º | 73.5º | 73.5º | 73º | 73º |
| Rake | 55 | 55 | 55 | 55 | 55 | 55 |
| Standover | 738 | 765 | 792 | 819 | 846 | 873 |
| Reach | 390 | 390 | 395 | 400 | 405 | 410 |
| Stack | 526 | 548 | 570 | 592 | 614 | 636 |
| Fork Length | 390 | 390 | 390 | 390 | 390 | 390 |
| Trail | 73 | 70 | 67 | 67 | 63 | 60 |