ORBEA ONNA 20 29 2027 mountain bike tanzanite/silver

The Orbea Onna 20 2027 is a front-suspension mountain bike with 100 mm of travel and an air fork, designed for recreational riding on easier off-road trails.

Who is the Orbea Onna 20 2027 ideal for?

It sits in the entry-level category of mountain bikes for recreational use. With 100 mm of travel and an aluminium frame, it falls into the classic XC and trail category, offering an excellent balance of price and performance. Its aluminium frame keeps the price lower than that of carbon equivalents while providing high durability. It is designed for beginners and occasional riders on gravel roads, forest tracks and moderately challenging singletrack.

Key benefits of the Orbea Onna 20

• RockShox Judy Silver TK air fork: With 100 mm of travel and a Solo Air system, it allows precise adjustment to the rider’s weight for smooth absorption of smaller obstacles and roots.
• Shimano Cues U6000 drivetrain: The 11-speed system with an 11-50t cassette provides a wide gear range for tackling steeper climbs without excessive effort.
• Shimano MT200 brakes: Reliable hydraulic disc brakes offer consistent braking power and safe stopping in all weather conditions.
• Onna aluminium frame: Equipped with internal cable routing for a clean look and to protect the cables from dirt, plus a standard BSA bottom bracket for easy maintenance.
• Kenda Booster 2.40" tyres: The wider profile with a 30 TPI casing provides extra grip and stability on gravel and forest surfaces.

Real-world use

On moderate climbs, the 11-speed Shimano Cues drivetrain with an 11-50t cassette makes pedalling easy, while the stiff aluminium frame ensures efficient power transfer.

On all-day gravel rides, the relaxed geometry reduces strain on your back and arms, while the RockShox air fork effectively absorbs surface vibrations to reduce fatigue.

On easier forest descents, the Shimano MT200 hydraulic brakes and wide 2.40-inch Kenda tyres provide predictable control and safe stopping before unexpected obstacles.