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.
XLC Dropperpost Dropper SP-T21, Dia. 34.9 mm, Travel: 150 mm 456 mm
Sizes and geometry
4 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
150160170180190200
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
Weight limit
135 kg
297.6 lb
Suspension
Suspension configuration
Full suspension
Front travel
160 mm
Drivetrain
Derived by Bikelake
Front chainrings
1
Rear sprockets
12
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
Bosch PowerTube 800Wh
Wheel material
Aluminum
Wheel size
29″
Technical analysis
2 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.
160mm
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
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
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.
