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
ROCKRIDER COMFORT GEOMETRY FRAME in 6061 aluminium with hydroformed tubes 12x148 mm Boost Seat tube diameter: 31.6 mm Tapered head tube 1 bottle cage mounting point
Not identified
Electric system
3 parts
Battery
Samsung SDI or LG Capacity: 420 Wh Our battery supplier sources its minerals responsibly and sustainably, and is part of the "Responsible Minerals Initiative".
Not identified
BROSE C Aluminium motor Mid-drive position 50 Nm torque Torque sensor Max assistance: 280% The electrical assistance cuts out above 25 km/h in accordance with EU regulations
34T 3D ChainFlow chainring with chain guide MICROSHIFT ACOLYTE 8-speed rear derailleur, medium cage Crank: 175 mm MICROSHIFT ACOLYTE right shifter MICROSHIFT 8-sprocket 12-42 T cassette KMC E8S special electric chain
Rockrider Tubeless Ready (needs tubeless tyres, special Presta valves and tyre sealant) 27.5", compatible with wide tyres: up to 2.5" 23 mm (width between hooks) 32 spokes 6-bolt disc Freehub: HG
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
womens
Frame material
Aluminum
Bicycle weight
22.8 kg
50.3 lb
Suspension
Suspension configuration
Hardtail
Front travel
120 mm
Drivetrain
Derived by Bikelake
Front chainrings
1
Rear sprockets
8
Smallest sprocket
12
Largest sprocket
42
Wheels and brakes
Wheel configuration
Same size
Brake type
Hydraulic disc
Fit and controls
Shifting
Mechanical
Electric system
Battery capacity
420 Wh
Additional specifications
Battery
Samsung SDI or LG Capacity: 420 Wh Our battery supplier sources its minerals responsibly and sustainably, and is part of the "Responsible Minerals Initiative".
Fork spring
Coil
Tire width
2.35″
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: 120 mm to 170 mm. Median: 130 mm.
120mm
This value is within the central range for this class.
120 mmTypical range150 mm
Cohort
Mountain / Trail
Model year: 2022
Sample
1,696 bicycles with this information
Coverage
98.6% of the class
Shifting
How we calculated this
This analysis describes frequency, not preference.
Mechanical
120 of 1,720 bicycles with this information use electronic shifting.
Electronic 6.9%Mechanical 93.0%
Cohort
Mountain / Trail
Model year: 2022
Sample
1,720 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.
Differences across 2022 builds
Differences across 2022 builds
Specification
This bicycle
Rockrider Women's 27.5" Electric Mountain Bike E-ST 500