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.
Our designers equipped the ST 540 S MTB with an X-Fusion E1 air shock, lightweight and specifically adjusted to this frame. You can easily adjust it based on your weight using the Schrader valve, which creates a very good balance between sensitivity and performance. A specific "high pressure" pump is required to adjust this shock (B'Twin fork and shock pump - ref: 3310286).
Take on obstacles! The aluminium Aero Trail Evo wheels are robust and effective: 27.5" double-walled rims. Their diameter is the perfect balance between comfort and performance. With their 28 spokes, they are lightweight, stiff, and durable.The exclusive 27.5" x 2.2 B'TWIN ALL TERRAIN LIGHT tyres are lighter weight and have lugs that are specially designed for all-terrain rides. Their 2.2 width ensures more traction on technical sections.
Take on obstacles! The aluminium Aero Trail Evo wheels are robust and effective: 27.5" double-walled rims. Their diameter is the perfect balance between comfort and performance. With their 28 spokes, they are lightweight, stiff, and durable.The exclusive 27.5" x 2.2 B'TWIN ALL TERRAIN LIGHT tyres are lighter weight and have lugs that are specially designed for all-terrain rides. Their 2.2 width ensures more traction on technical sections.
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
160170180190200
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
Suspension
Suspension configuration
Full suspension
Front travel
120 mm
Wheels and brakes
Wheel configuration
Same size
Brake type
Hydraulic disc
Fit and controls
Shifting
Mechanical
Additional specifications
Tire width
2.2″
Wheel material
Aluminum
Wheel size
27.5″
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: 51 mm to 180 mm. Median: 130 mm.
120mm
This value is within the central range for this class.
120 mmTypical range150 mm
Cohort
Mountain / Trail
Model year: 2024
Sample
2,036 bicycles with this information
Coverage
96.6% of the class
Shifting
How we calculated this
This analysis describes frequency, not preference.
Mechanical
346 of 2,107 bicycles with this information use electronic shifting.
Electronic 16.4%Mechanical 83.5%
Cohort
Mountain / Trail
Model year: 2024
Sample
2,107 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.