Lowest gear
25.7 gear inches
This value is above the central range for this class.
Rockrider Mountainbike 20 Zoll Expl 500 Kinder grün
1 of 11
Rockrider Mountainbike 20 Zoll Expl 500 Kinder grün
1 of 11
- 20″
- 1 × 6
- 200%
- Steel
- Rim brake
Not published by the manufacturer
- Sizes and geometry
Components
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.
Frame and fork
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Frame
Newly developed steel frame, particularly robust. Short chainstays make the bicycle especially dynamic and agile. Frame dimensions: Top tube length: 431.6 mm, Seat tube length: 285 mm, Chainstay length: 360 mm, Seatpost length: 300 mm, Steering angle: 68.8°
Suspension
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Fork
Suspension fork for damping shocks on rough terrain, allowing easy overcoming of obstacles (roots, gravel, stones...)
Drivetrain
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Chain guide
Chain guide to prevent chain derailment.
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Crankset
Crankset with 36 teeth and crank arms of 140 mm length, adapted to children's body structure. This simplifies starting. A cover protects the child from contact with the metal part. With chain guide to prevent chain derailment.
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Rear derailleur
6-speed freewheel: 14/28, 6-speed.
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Shifters
6-speed twist-grip shifter: easy to operate and safe (handlebar doesn't need to be released for gear changes). Allows intuitive gear changes in different terrain.
Brakes
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Brakes
Effective braking with two V-brakes. The brakes consist of two brake arms with brake pads, allowing you to apply more or less pressure to the rim to slow down or completely stop the wheel rotation.
Wheels and tires
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Rims
20-inch wheels with tires suitable for mountain biking. The side tread provides maximum grip in corners. Recommended tire pressure (2 to 3.5 bar) is indicated on the tire sidewalls. 20-inch inner tube, diameter: 1.7 to 2.2, with Schrader valve (car valve).
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Tires
20-inch tires suitable for mountain biking. The side tread provides maximum grip in corners. Recommended tire pressure (2 to 3.5 bar) is indicated on the tire sidewalls.
Cockpit and contact points
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Grips
One-piece handlebar and stem (fixed connection) for precise steering, making learning easier. No adjustment required.
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Handlebar
One-piece handlebar and stem (fixed connection) for precise steering, making learning easier. No adjustment required.
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Headset
One-piece handlebar and stem (fixed connection) for precise steering, making learning easier. No adjustment required.
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Pedals
Flat pedals included. For safe transport, our bicycles are shipped with pedals removed (assembly instructions and tools included).
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Saddle
Ergonomic, reinforced sports saddle perfectly adapted to children's body structure. It has a plastic shell (bumper) at the rear that absorbs shocks.
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Seatpost
Seatpost length: 300 mm
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Stem
One-piece handlebar and stem (fixed connection) for precise steering, making learning easier. No adjustment required.
Other components
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Bell
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Lights
Spoke reflectors included
Specifications
Frame and fork
- Intended fit
-
- Unisex
- Frame material
-
- Steel
Suspension
- Suspension configuration
-
- Hardtail
Drivetrain
- Front chainrings
-
- 1
- Smallest chainring
-
- 36
- Largest chainring
-
- 36
- Rear sprockets
-
- 6
- Smallest sprocket
-
- 14
- Largest sprocket
-
- 28
- Lowest gear
-
- 25.7 in
- Highest gear
-
- 51.4 in
Wheels and brakes
- Wheel configuration
-
- Same size
- Brake type
-
- Rim brake
Fit and controls
- Seatpost
-
- Rigid seatpost
- Shifting
-
- Mechanical
Additional specifications
- Tire width
-
- 3.5″
- Travel
-
- Front: Additional specification: Not available: No
- Wheel material
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- Aluminum
- Wheel size
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- 20″
Technical analysis
How these figures sit among bicycles of the same class and model year. Context, not a ranking.
Highest gear
51.4 gear inches
This value is within the central range for this class.
Shifting
Mechanical
10 of 367 bicycles with this information use electronic shifting.
Gearing
This bicycle
- 9.8
- 19.7
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 2025 builds
Other models in this family
Published versions from the same family and model year.
Mountainbike 20 Zoll Expl 500 Kinder grün
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