Shifting
Mechanical
10 of 367 bicycles with this information use electronic shifting.
RADIO Zuma 20
1 of 33
RADIO Zuma 20
1 of 33
- Rigid
- 20″
- 7
- 100%
- Aluminum
- Mechanical disc
Sizes
Size guide- One Size
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
RADIO "ZUMA 20" frame, 6061-T6 alloy
Suspension
-
Fork
Drivetrain
-
Bottom bracket
-
Cassette
-
Chain
-
Crankset
-
Rear derailleur
RD-M21SS
-
Shifters
Brakes
-
Brake levers
BL-367
-
Brakes
MD-M280
Wheels and tires
-
Front hub
-
Rear hub
-
Rims
-
Tires
Cockpit and contact points
-
Grips
-
Handlebar
-
Headset
-
Pedals
-
Saddle
-
Seatpost
SP-2019
-
Stem
Sizes and geometry
Size explorer
Understanding sizes and measurements
Geometry not published
Specifications
Frame and fork
- Intended fit
-
- Unisex
- Frame material
-
- Aluminum
- Fork material
-
- Aluminum
Suspension
- Suspension configuration
-
- Rigid
Drivetrain
- Rear sprockets
-
- 7
- Smallest sprocket
-
- 32
- Largest sprocket
-
- 32
Wheels and brakes
- Wheel configuration
-
- Same size
- Brake type
-
- Mechanical disc
Fit and controls
- Seatpost
-
- Rigid seatpost
- Shifting
-
- Mechanical
Additional specifications
- Bottom bracket standard
-
- BSA
- Tire width
-
- 2.25″
- 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.
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.
Similar bicycles
Same category, closest configuration.
