ONNA 50
Orbea
Crosscountry
ONNA 50 is an alloy cross-country mountain bike (2023), by Orbea, from the Onna lineup. Rider-wise, it fits riders who prioritize comfort and confidence on longer off-road rides, with a comfort-leaning position, with a surface profile that is best for smoother trails and efficient rolling. On MatchBikes metrics, it scores well for strong value-for-money versus many similar bikes, good fit flexibility for dialing in rider position, and a comfort-leaning ride feel over longer rides. Use MatchBikes.com to compare this bike with nearby cross-country options.
6.0
Rating

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Score Summary
Performance
4.4
Value
9.7
Fit
6.5
Performance
Built for speed and efficiency
Speed
5.1
Low
Climbing Efficiency
3.7
Hefty but Manageable
Suspension
5.0
Confident trail control
Fit
Dialed-in Fit & Comfort
Riding Position
4.7
Comfort
Fit Flexibility
7.3
Adjustable
Ride Comfort
6.6
Comfortable
Value
Value for Money
9.7
Exceptional Value
Surface Range
Flow TrailsSpecifications
General
Brand
Orbea
Model
ONNA 50
Year
2023
Price
$766
Category
Mountain
Sub Category
Crosscountry
Groupset
Tourney, Shimano
Wheels
27.5"
Frame
Frame
Orbea Onna Alloy, Dropout 9x135, BSA BB, Internal cable routing
Suspension Fork
SR Suntour XCE 28 Coil 100mm QR
Suspension Type
Hardtail
Drivetrain
Shift Levers
Microshift TS38
Rear Derailleur
Shimano Tourney TX800
Front Derailleur
Shimano M315 31.8mm
Cassette
Sun Race CSM66 11-34t 8-Speed
Crank
Forged alloy, 22x36t, 7/8S
Bottom Bracket
BSA, 73mm, threaded
Chain
KMC X8
Wheels
Rims
Mach1 ER20 19c
Tires
Kenda K1153 2.35" 22TPI
Brakes
Brake Type
Hydraulic Disc
Brake Description
Shimano MT200 Hydraulic Disc
Cockpit
Stem
Alloy, 7º
Handlebar
Alloy, 31.8mm, Flat, 720mm
Seat
Saddle
Essax Adv soft135mm for Orbea
Seatpost
Alloy, 27.2mm, Setback 0
Geometry
| Measurement | XS | SM | SM | MD | LG | XL |
|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.59 mm | 1.53 mm | 1.58 mm | 1.47 mm | 1.42 mm | 1.37 mm |
| Bottom Bracket Height | 312 mm | 312 mm | 309 mm | 309 mm | 309 mm | 309 mm |
| Front Center | 623 mm | 647 mm | 661 mm | 689 mm | 714 mm | 747 mm |
| Rake | 42 mm | 42 mm | 46 mm | 46 mm | 46 mm | 46 mm |
| Trail | 95 mm | 95 mm | 98 mm | 98 mm | 98 mm | 98 mm |
| Stack | 583 mm | 592 mm | 618 mm | 618 mm | 628 mm | 642 mm |
| Reach | 366 mm | 386 mm | 391 mm | 419 mm | 441 mm | 469 mm |
| Top Tube Length | 527 mm | 550 mm | 562 mm | 590 mm | 615 mm | 647 mm |
| Seat Tube Angle | 74.5 ° | 74.5 ° | 74.5 ° | 74.5 ° | 74.5 ° | 74.5 ° |
| Seat Tube Length | 350 mm | 388 mm | 388 mm | 430 mm | 470 mm | 540 mm |
| Head Tube Angle | 68.5 ° | 68.5 ° | 68.5 ° | 68.5 ° | 68.5 ° | 68.5 ° |
| Head Tube Length | 95 mm | 105 mm | 95 mm | 95 mm | 105 mm | 120 mm |
| Chainstay Length | 431 mm | 431 mm | 441 mm | 441 mm | 441 mm | 441 mm |
| Wheelbase | 1050 mm | 1074 mm | 1094 mm | 1122 mm | 1147 mm | 1181 mm |
| Bottom Bracket Drop | 45 mm | 45 mm | 64 mm | 64 mm | 64 mm | 64 mm |
| Standover Height | 669 mm | 706 mm | 706 mm | 740 mm | 771 mm | 827 mm |
| Wheels | 27" | 27" | 29" | 29" | 29" | 29" |
| Rider Min Height | 145 cm | 155 cm | 155 cm | 165 cm | 175 cm | 185 cm |
| Rider Max Height | 160 cm | 170 cm | 170 cm | 180 cm | 190 cm | 195 cm |




























































