2025 Orbea Terra M31 eTeam 1x

The 2025 Orbea Terra M31 eTeam 1x is a high-performance gravel bike built around a carbon OMR Disc frame with premium monocoque construction. That means the frame keeps the perfect balance between being lightweight and stiff enough to handle tough terrain.

This bike is ready for speed down to the small details. There’s even a LOCKR service box built into the frame for stashing tools or small essentials, keeping your setup clean and ready. Internal cable routing keeps things clean and cuts down on drag. The rear thru-axle measures 12 by 142 millimeters, adding stiffness that helps with control when the trail gets rough. Up front, the full carbon Orbea Terra ICR fork has a 12 by 100-millimeter thru-axle. It sharpens steering precision and smooths out vibrations without adding extra weight.

Drivetrain

The SRAM Rival eTap AXS drivetrain provides fast, sharp wireless shifting for maximum performance. The SRAM Rival 1 Dub Wide crankset uses a single 40-tooth chainring, matched with the SRAM XG-1251 XPLR 10-44T 12-speed cassette. That wide range covers everything from steep hill climbs to powering down long descents at top speed ahead of the pack. You get precise, quick response from the SRAM Rival XPLR eTap AXS rear derailleur, and the SRAM Rival 12-speed chain keeps power transfer efficient and reliable.

Brakes

SRAM Rival eTap AXS hydraulic disc brakes provide plenty of precise, reliable stopping power. Their consistent modulation helps you confidently control your speed when faced with an upcoming sharp turn, gravel section or a need to react to any unexpected situation during your ride.

Cockpit

The cockpit keeps you comfortable and in control. The OC Gravel GR31 handlebar has a 70-millimeter reach and a 110-millimeter drop. This works well for long rides and offers stability on rough ground. The OC Road Performance RP22 stem tilts down at minus 5 degrees to position you just right for endurance riding and better bike handling.

Wheels and Tires

The wheels are Oquo Road Control RC25PRO. They strike a nice balance between being lightweight for speed and tough for rugged terrain. Vittoria Terreno Dry CX-Gravel G2.0 TNT tires in 700x38c size grip the trail with confidence, offering comfort and traction on all kinds of surfaces.

Comfort Features

Comfort is dialed in further by the OC Performance XP10 Carbon seatpost, sized 27.2 millimeters with zero setback. It soaks up bumps without wasting your energy or messing with your ride position. Sitting on top is the Prologo Akero AGX saddle at 155 millimeters wide, made to support you through long days in the saddle without discomfort.

Summary

If you want a capable, well-thought-out gravel bike with modern features, the 2025 Orbea Terra M31 eTeam 1x does a great job at blending speed, comfort, and control across mixed terrain. It's ready to roll whether you're aiming for a fast gravel race or a spirited off-road adventure.