Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.
PartComponentPart no.
Frame and fork
1 part
Frame
KELLYS THEOS AX-series - FLT welded technology, Al 6061-T6 / Horst-Link four-bar suspension system, 160 mm rear travel, 1.8" tapered HT, post mount 203 mm, 29" wheelset, 12x148 mm Boost thru axle
Not identified
TranzX (internal cable routing compatible with A-BOX head set) - diam 28.6 mm / bar bore 35 mm / 8°/ length 45 mm
Sizes and geometry
3 sizes
Size explorer
Understanding sizes and measurements
Height ranges are reported by the manufacturer. A matching range is a starting point, not a guarantee of fit. Your proportions and bike setup also matter.
Reach is the horizontal distance from the bottom bracket to the top of the head tube; stack is the vertical distance.
Positive values mean more reach or stack than the reference size; zero means the same measurement. Missing values are not estimated.
Enter your height to highlight matching ranges.
SizeReported by the manufacturer
150160170180190
Geometry not published
The manufacturer lists these sizes without frame measurements, so there is no drawing or geometry table.
Specifications
Frame and fork
Intended fit
Unisex
Frame material
Aluminum
Suspension
Suspension configuration
Full suspension
Front travel
170 mm
Rear travel
160 mm
Drivetrain
Derived by Bikelake
Front chainrings
1
Smallest chainring
34
Largest chainring
34
Rear sprockets
11
Smallest sprocket
11
Largest sprocket
50
Lowest gear
19.7 in
Highest gear
89.6 in
Wheels and brakes
Wheel configuration
Same size
Brake type
Hydraulic disc
Fit and controls
Seatpost
Dropper seatpost
Shifting
Mechanical
Electric system
Battery capacity
800 Wh
Additional specifications
Battery
AVINOX Li-ion internal removable 800 Wh - energy density 200 Wh/kg, weight 4 kg, capacity 22 Ah
Fork spring
Air
Tire width
2.4″
Wheel material
Aluminum
Wheel size
29″
Technical analysis
3 measures
How these figures sit among bicycles of the same class and model year. Context, not a ranking.
Front travel
How we calculated this
Observed range: 38 mm to 200 mm. Median: 160 mm.
170mm
This value is within the central range for this class.
150 mmTypical range170 mm
Cohort
Mountain / Enduro
Model year: 2026
Sample
1,332 bicycles with this information
Coverage
95.2% of the class
Rear travel
How we calculated this
Observed range: 135 mm to 210 mm. Median: 160 mm.
160mm
This value is within the central range for this class.
150 mmTypical range170 mm
Cohort
Mountain / Enduro
Model year: 2026
Sample
1,005 bicycles with this information
Coverage
71.8% of the class
Shifting
How we calculated this
This analysis describes frequency, not preference.
Mechanical
454 of 1,399 bicycles with this information use electronic shifting.
Electronic 32.4%Mechanical 67.5%
Cohort
Mountain / Enduro
Model year: 2026
Sample
1,399 bicycles with this information
Coverage
100.0% of the class
Gearing
Estimated speeds at 80 rpm
This bicycle
Lowest gear
7.6 km/h
Highest gear
34.3 km/h
015304560
Total gear range455%
These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.
Gear-inch range
Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.
090 gear inches
This bicycle
19.7–89.6 gear inches
Lineup changes
The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.
Differences across 2026 builds
Differences across 2026 builds
Specification
This bicycle
Kellys Theos AX20, Magic Hydra 29" 800 Wh