Lowest gear
25.6 gear inches
This value is within the central range for this class.
Opus Zenith GRX12
1 of 3
Opus Zenith GRX12
1 of 3
- Rigid
- 700c
- 2 × 12
- 474%
- 250
- 14.1
- Aluminum
- Hydraulic disc
Sizes
Size guide- XXS
- XS
- SM
- MD
- LG
- XL
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
Gravel capable aluminum frame
Electric system
-
Battery
-
Motor
Suspension
-
Fork
Full carbon tapered 1-1/2 to 1-1/8 in
Drivetrain
-
Bottom bracket
-
Cassette
-
Chain
CN-M6100
-
Crankset
FC-RX610
-
Front derailleur
RD-RX820
-
Rear derailleur
FD-RX820
-
Shifters
ST-RX610
Brakes
-
Brakes
BR-RX400
Wheels and tires
-
Front hub
-
Rear hub
-
Rims
-
Tires
Cockpit and contact points
-
Handlebar
-
Headset
-
Pedals
None
-
Saddle
-
Seatpost
-
Stem
Sizes and geometry
Size explorer
Specifications
Frame and fork
- Intended fit
-
- Unisex
- Frame material
-
- Aluminum
- Fork material
-
- Carbon
- Bicycle weight
-
- 14.1 kg
- 31.1 lb
Suspension
- Suspension configuration
-
- Rigid
Drivetrain
- Front chainrings
-
- 2
- Smallest chainring
-
- 30
- Largest chainring
-
- 46
- Rear sprockets
-
- 12
- Smallest sprocket
-
- 11
- Largest sprocket
-
- 34
- Lowest gear
-
- 25.6 in
- Highest gear
-
- 121.3 in
Wheels and brakes
- Wheel configuration
-
- Same size
- Brake type
-
- Hydraulic disc
Fit and controls
- Seatpost
-
- Rigid seatpost
- Shifting
-
- Mechanical
Electric system
- Battery capacity
-
- 250 Wh
Additional specifications
- Battery
-
- FSA e-system 250Wh 36V 6.8Ah battery, Optional 180Wh 36V 4.8Ah range extender battery, adding 50km of range, FSA e-system HM.2 & 250Wh integrated battery
- Bottom bracket standard
-
- BB86/BB92
- Tire clearance
-
- Maximum tire width: 45c
- Tire width
-
- 40c
- Wheel material
-
- Aluminum
- Wheel size
-
- 700c
Technical analysis
How these figures sit among bicycles of the same class and model year. Context, not a ranking.
Highest gear
121.3 gear inches
This value is within the central range for this class.
Shifting
Mechanical
706 of 1,980 bicycles with this information use electronic shifting.
Gearing
This bicycle
- 9.8
- 46.4
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.
Changes since 2025
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