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Note : Please note that specifications are subject to change without notice, based on component availability and other factors.
Orbea designed the Onna for the rider who wants to conquer the trail. A bike geometry that maximizes efficiency and control is perfect for any rider who is learning to love MTB.
Onna 50 boasts balanced geometry with perfect trail manners to maximise the fun for all riders. Add wheel sizes matched to frame size give perfect fit for all riders and the Onna is ready for the trail ahead. With tapered headtube to give a wide choice of 100 mm suspension forks and hydraulic disc brakes across all the range, Onna is equipped for the ride. With plenty of room for wide mountain bike tyres for comfort and grip, Onna isn´t going to limit your adventures. Onna´s advanced aluminium frame with shaped tubes allows us to fine tune the ride quality. Stiff enough to be fast and responsive, compliant enough to be comfortable and controlled.
The perfect ride starts with the perfect fit, and to help you find yours Onna is available in four frame sizes matched with two wheel sizes.
Frame | Aluminium: Orbea Onna Alloy, Dropout 9x135 mm, BSA BB, Internal cable routing |
Fork | SR Suntour XCE 28 Coil, QR, 100 mm travel |
Shifters | Microshift TS38, 2x8-speed |
Front Derailleur | Shimano M315, 31.8 mm |
Rear Derailleur | Shimano Tourney TX RD-TX800, 8-speed |
Cassette | SunRace CSM66, 11-34T |
Chain | KMC X8 |
Crankset | Forged alloy, 36/22T |
Brakes | Shimano MT200, Hydr. Disc Brake |
Wheelset | Mach1 ER20 19c, 29" |
Tires | Kenda K1153, 22 TPI, 29x2.35" |
Handlebar | Alloy, 31.8 mm, Flat, Width 720 mm |
Stem | Alloy, 7º |
Headset | 1"-1/8 Semi-Integrated |
Saddle | Essax Adv soft135mm for Orbea |
Seatpost | Alloy, 27.2 mm, Setback 0 mm |
Pedals | VP-537 Black |
Weight | --- |
Color | N9 - Black (Gloss-Matt) |
Reference | N207 |
Frame Size | S | M | L | XL |
Seat Tube (mm) | 388 | 430 | 470 | 540 |
Top Tube (mm) | 561 | 589 | 614 | 646 |
Chain Stays (mm) | 440 | 440 | 440 | 440 |
Head Tube Length (mm) | 95 | 95 | 105 | 120 |
Head Tube Angle (°) | 68.5 | 68.5 | 68.5 | 68.5 |
Seat Tube Angle (°) | 74.5 | 74.5 | 74.5 | 74.5 |
Wheelbase (mm) | 1093 | 1121 | 1146 | 1180 |
Stack (mm) | 617 | 617 | 627 | 641 |
Reach (mm) | 390 | 418 | 440 | 468 |
Stem Length (mm) | 70 | 70 | 70 | 90 |
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Gender | Men |
Fork Travel | 100 |
Frame material | Alloy |
Groupset | Shimano Tourney/Altus 8V |
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