Lowest gear
18.8 gear inches
This value is within the central range for this class.
Rockrider Kinderfahrrad Mountainbike 20 Zoll Explore 900R rot
1 of 16
Rockrider Kinderfahrrad Mountainbike 20 Zoll Explore 900R rot
1 of 16
- Rigid
- 20″
- 1 × 8
- 309%
- Aluminum
- Mechanical disc
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
-
Frame
Lightweight aluminum frame for demanding MTB tours, designed to keep the bike under 10 kg. Features sloping geometry for agility in difficult terrain and 2 inserts for bottle cage attachment.
Suspension
-
Fork
Rigid fork instead of suspension fork to save weight. Uses 2.2-inch wide tires to provide damping and grip.
Drivetrain
-
Cassette
8-speed cassette with 11/34 teeth.
-
Crankset
32-tooth crankset with 140 mm crank arms, designed for children with double chain protection to prevent chain drop.
-
Shifters
Easytrigger twist-grip shifter for easy shifting between 8 gears.
Brakes
-
Brakes
Mechanical disc brakes front and rear with 160 mm rotors for progressive, strong braking performance.
Wheels and tires
-
Rims
20-inch wheels with quick release system for easy removal and installation. Includes 20-inch inner tubes with Schrader valves, suitable for tire widths from 1.7 to 2.2 inches.
-
Tires
20-inch studded tires with 2.2-inch width for grip and comfort, compensating for the lack of suspension fork. Recommended tire pressure: 2 to 3.5 bar.
Cockpit and contact points
-
Handlebar
580 mm wide oversize handlebar for stability during descents, good balance when standing, and better handling. This width also helps open the chest for better breathing.
-
Pedals
Flat pedals included as standard equipment.
Other components
-
Bell
-
Fenders
-
Racks
-
Kickstand
Specifications
Frame and fork
- Intended fit
-
- Unisex
- Frame material
-
- Aluminum
Suspension
- Suspension configuration
-
- Rigid
Drivetrain
- Front chainrings
-
- 1
- Smallest chainring
-
- 32
- Largest chainring
-
- 32
- Rear sprockets
-
- 8
- Smallest sprocket
-
- 11
- Largest sprocket
-
- 34
- Lowest gear
-
- 18.8 in
- Highest gear
-
- 58.2 in
Wheels and brakes
- Wheel configuration
-
- Same size
- Brake type
-
- Mechanical disc
Fit and controls
- Shifting
-
- Mechanical
Additional specifications
- Fork spring
-
- Air
- Tire width
-
- 2.2″
- Travel
-
- Front: Additional specification: Not available: Yes
- Wheel material
-
- Aluminum
- Wheel size
-
- 20″
Technical analysis
How these figures sit among bicycles of the same class and model year. Context, not a ranking.
Highest gear
58.2 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
- 7.2
- 22.3
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.
Kinderfahrrad Mountainbike 20 Zoll Explore 900R rot
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