Orbea Onna 50 27,5" MTB Tanzanite (Matt) / Silver (Gloss) 2027

The Orbea Onna 50 27.5" MTB is the ideal companion to get started.

Designed specifically for riders discovering the trails, this model perfectly combines maneuverability and safety to help you gain confidence on the dirt. Whether you want to explore forest paths or countryside tracks, its stable and reassuring geometry transforms every ride into a true moment of pleasure. To guarantee a perfect riding position, the 27.5-inch wheel size is ideally proportioned to the frame of XS and S sizes.

Built around a modern frame with internal cable routing, equipped with a 100 mm suspension fork (adapted according to size) to absorb obstacles and powerful hydraulic disc brakes, the Onna 50 brings together all the essential components to escape in complete serenity.

Key features

• SAFE HYDRAULIC BRAKING: Thanks to the Shimano MT200 hydraulic disc brakes, you enjoy powerful, consistent, and easy-to-modulate braking, even in wet weather or muddy terrain.
• RELIABLE SHIMANO DRIVETRAIN: The 2x8-speed double chainring drivetrain offers a wide gear range to climb hills effortlessly while maintaining excellent speed on flat terrain.
• ROBUST AND EVOLUTIVE FRAME: Made of high-quality aluminium with internal cable routing, this frame with its reassuring geometry is built to last and can accommodate a dropper seatpost in the future.
• ORBEA LIFETIME WARRANTY: Proof of the Spanish brand's expertise and rigor, the robust aluminium frame of the Onna benefits from a lifetime manufacturer's warranty.

Specifications

• FRAME: Orbea Onna Alloy, Dropout 9x135, BSA BB, Internal cable routing
• FORK: SR Suntour XCE 28 Coil 100mm QR
• CRANKSET: Forged alloy, 22x36t, 7/8S
• HEADSET: 1"-1/2 Semi-Integrated
• HANDLEBAR: Alloy, 31.8mm, Flat, 740mm, Sweep 9
• STEM: Alloy, 7º
• SHIFTERS: Microshift TS38
• BRAKES: Shimano MT200 Hydraulic Disc
• CASSETTE: Sun Race CSM66 11-34t 8-Speed
• REAR DERAILLEUR: Shimano Tourney TX800
• FRONT DERAILLEUR: Shimano M315 31.8mm
• CHAIN: KMC X8
• WHEELS: WH 2.1, Alloy, 27.5", 32H
• TYRES: Kenda K1153 2.35" 22TPI
• SEATPOST: SP 0.6, Alloy, 27.2mm, Setback 0
• PEDALS: VP-537 Black
• SADDLE: Essax Adv soft135mm for Orbea

Size guide (indicative dimensions)

• XS (27.5"): 145-160 cm (55.1"-65.0")
• S (27.5"): 155-170 cm (61.1"-66.9")