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2026 Orbea

ONNA 20

A 27.5″ / 29″ aluminum frame hardtail crosscountry bike with mid-range components.
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Manufacturer Price

£899($1,206)
FrameAluminum
SuspensionHardtail, 100mm
ForkRockShox Judy Silver TK
Wheels27.5″ / 29″ Aluminum
Drivetrain1 × 11
GroupsetCUES
BrakesShimano Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
ONNA 20
Other Crosscountry bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

25 mph

ONNA 20

27 mph

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full ONNA model range

View Comparison
Sizing
XS

5'1" – 5'6"

SM

5'4" – 5'9"

MD

5'7" – 6'0"

LG

5'10" – 6'3"

XL

6'0" – 6'5"

🐐 Estimated

Rider Fit Notes

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Price History
Geometry
Specs
Build
Frame

Orbea Onna Alloy, Dropout 9x135, BSA BB, Internal cable routing

BB StandardBSA, 73mm, Threaded

ColorsBurning Red (Gloss) - Black (Matt); Tanzanite (Matt) - Silver (Gloss); Ivory White (Gloss) - Navy Blue (Matt)

Fork

RockShox Judy Silver TK Crown adjust QR Solo Air 100

Travel100mm

Spring TypeAir

Bottom Bracket

BSA, 73mm, threaded

Stem

Alloy, 7º

Handlebar

Alloy, 31.8mm, Flat, 740mm, Sweep 9

Saddle

Fortune QF-3091

Seatpost

SP 0.6, Alloy, 27.2mm, Setback 0

TypeRigid

Pedals

VP-537 Black

Groupset
Rear Derailleur

Shimano Cues U6000 GS Shadow

Crank

Forged alloy, 32t

Shifters

Shimano Cues SL-U6000

Cassette

Sun Race 11-50t 11-Speed

Chain

KMC eGlide

Brakes

Shimano MT200 Hydraulic Disc

TypeShimano Hydraulic Disc

Wheels
Rims

WH 2.1, Alloy, 27,5", 32H

Tires

Kenda Booster 2.40" 30TPI

Rider Notes
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First added August 2

Last updated May 3