Orbea Onna Mountain Bike, 27.5 size small. Great condition

Bought this Orbea Onna 27.5 (size small) for my sons 12th birthday in February 2026. It is only 5 months old, in excellent condition, some minor scratches on frame. Only selling as he is getting into cross country trail biking. This is a great deal!

The Orbea Onna is the perfect bike for those who are new to mountain biking and are looking for a reliable companion for their first adventures. Its design is focused on providing a safe, fun and confidence-inspiring riding experience from the first pedal stroke.

Thanks to its balanced, trail-oriented geometry, the Onna offers stable and predictable handling, ideal for learning and progressing on all types of trails. In addition, each frame size is optimized with the corresponding wheel size, ensuring a perfect fit and maximum performance for each rider.

Characteristics:

Hydraulic disc brakes: All models feature 160 mm Post Mount hydraulic disc brakes, which guarantee powerful and modulable braking in all circumstances.
Internal Wiring: The cables run through the inside of the frame from the head tube, achieving a clean aesthetic, protecting the components and avoiding vibration noise.
Dropper post compatible: The frame allows the installation of 27.2 mm dropper posts with internal guidance, an essential improvement to gain safety on descents.
Quick Releases: Equipped as standard with quick releases on the wheels for easy and tool-free assembly and disassembly.