Front travel
80 mm
This value is below the central range for this class.
Rockrider Mountainbike 27.5 Zoll ST120 Grau/Orange
1 of 24
Rockrider Mountainbike 27.5 Zoll ST120 Grau/Orange
1 of 24
- 80
- 27.5″
- 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
Comfort Geometry Frame (CGF) made of 100% aluminum with a special angle for upright riding position and shorter rear stays for agility
Suspension
-
Fork
80mm travel suspension fork with U-Fit weight adjustment system (55-105 kg)
Drivetrain
-
Cassette
-
Chain
-
Crankset
-
Rear derailleur
RD-M25
-
Shifters
SL-759
Brakes
-
Brake levers
-
Brakes
Wheels and tires
-
Rims
27.5-inch wheels with hollow chamber rims (19mm), 28 spokes
-
Tires
27.5×2.0 Dry tires for dry terrain with efficient rolling center and side profile for cornering grip
Cockpit and contact points
-
Grips
Soft-touch material grips for good grip and comfortable feel
-
Handlebar
Aluminum handlebar, 640mm wide for high stability and control
-
Pedals
MTB flat pedals made of hard resin, lightweight and safe
-
Saddle
Exclusive wide Ergofit saddle in hammock shape
-
Seatpost
Flex steel seatpost (350-400mm long) with 27.2mm diameter, height adjustable
-
Stem
Aluminum stem, 90mm long with 10° angle for comfortable, ergonomic riding position
Other components
-
Bell
Included with the bicycle
Specifications
Frame and fork
- Intended fit
-
- Unisex
- Frame material
-
- Aluminum
Suspension
- Suspension configuration
-
- Hardtail
- Front travel
-
- 80 mm
Drivetrain
- Front chainrings
-
- 1
- Smallest chainring
-
- 32
- Largest chainring
-
- 32
- Rear sprockets
-
- 8
- Smallest sprocket
-
- 11
- Largest sprocket
-
- 34
- Lowest gear
-
- 25.9 in
- Highest gear
-
- 80.0 in
Wheels and brakes
- Wheel configuration
-
- Same size
- Brake type
-
- Mechanical disc
Fit and controls
- Seatpost
-
- Rigid seatpost
- Shifting
-
- Mechanical
Additional specifications
- Tire width
-
- 2″
- Wheel material
-
- Aluminum
- Wheel size
-
- 27.5″
Technical analysis
How these figures sit among bicycles of the same class and model year. Context, not a ranking.
Shifting
Mechanical
222 of 1,647 bicycles with this information use electronic shifting.
Gearing
This bicycle
- 9.9
- 30.6
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 27.5 Zoll ST120 Grau/Orange
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