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
6061 aluminium with hydroformed tubes
Not identified
The E-ST520 electric bike is equipped with a single chainring and ChainFlow 3D anti-slip technology to prevent the chain from derailing. A single shifter on the right handlebar makes it easy to shift between the 9 speeds. In detail: -Chainflow & Anti-derailment single chainring with 34 teeth -Microshift Advent 9-speed rear derailleur with long cage -Microshift Advent right shifter -Microshift H093 9-speed cassette (11 to 42 teeth) -KMC E9 Sport electric bike specific chain
Regardless of the conditions you ride in (dry/wet/muddy), the hydraulic Tektro TKD88 disc brakes at the front and rear provide powerful and progressive braking. Oversized 180mm diameter discs provide even more power.
Wheels and tires
2 parts
Rims
27.5" double-walled rims with 23 mm width, 28 spokes at the front and 32 spokes at the rear
Not identified
Since your mountain bike rides will get longer and longer, it is important to have a suitable seat. Our teams have designed the exclusive Rockrider Ergofit Evo saddle. It fits all hip sizes and has a curved shape that is particularly good for sport trail rides. The 31.6 mm aluminium seat post ensures compatibility with most adjustable and suspended seat posts on the market.
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
Suspension
Suspension configuration
Hardtail
Front travel
120 mm
Drivetrain
Derived by Bikelake
Front chainrings
1
Smallest chainring
34
Largest chainring
34
Wheels and brakes
Wheel configuration
Same size
Brake type
Hydraulic disc
Fit and controls
Seatpost
Rigid seatpost
Shifting
Mechanical
Additional specifications
Battery
LG or Samsung (LGC-MG1 or SDI)
Tire width
2.4″
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 27.5 Inch Electric Mountain Bike E-ST 520