Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices

Today’s Deals
Bike Comparison
    ZENITH GRX122026 Opus
    Recommended
    MSRP
    ($3,600)
    Where to Buy
    —
    $1

    At

    Category
    		Gravel, E-Bike
    Weight
    		31.1 lbs
    3.7
    Frame
    		Aluminum
    		Carbon
    Wheels
    		Aluminum
    Wheel Size
    		700c
    Clearance
    		45c
    		Shimano GRX 400 Hydraulic Disc
    		245W 40Nm hub-drive
    		250Wh
    		GRX 800, GRX 600
    Drivetrain
    		2 × 12
    Brand Site

    opusbike.com

    Summary
    		The Opus ZENITH GRX12 is an aluminum frame gravel e-bike with high-end components and shimano grx 400 hydraulic disc brakes.

    Ask 99 Spokes

    Want to ask an actual human?

    Get free advice from an Upway E-bike Expert

    Shop with an Expert
    Similar Bikes
    Insights
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    ZENITH GRX12
    Other Gravel bikes
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    36 mph

    ZENITH GRX12

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    ZENITH GRX122026 Opus
    Frame

    Gravel capable aluminum frame

    BB Standard: BB86/BB92, Press Fit

    Tire Clearance: 45c

    Color: Midnight Green

    Fork

    Full carbon tapered 1-1/2 to 1-1/8 in

    Bottom Bracket

    Shimano sealed PF86

    Headset

    FSA integrated sealed

    Stem

    FSA Gossamer +/-6°

    Handlebar

    FSA NS Adventure compact 12° flare

    Saddle

    Opus Gravel

    Seatpost

    FSA Gossamer 27.2 x 350 mm

    Type: Rigid

    Pedals

    N/A

    Groupset
    Rear Derailleur

    Shimano FD-RX820

    Front Derailleur

    Shimano RD-RX820

    Crank

    Shimano FC-RX610

    Shifters

    Shimano ST-RX610 2x12

    Cassette

    Shimano 11-34

    Chain

    Shimano M6100 HG 12s

    Brakes

    Shimano RX 400 flat mount hydraulic disc

    Type: Shimano GRX 400 Hydraulic Disc

    Wheels
    Rims

    FSA Team 30 i23

    Front Hub

    FSA 12 x 100 mm / 12 x 142mm

    Rear Hub

    FSA 12 x 100 mm / 12 x 142mm

    Tires

    Vittoria Terreno T50 Mixed Gravel Endurance 700x40c

    Electric Components
    Motor

    FSA HM2.0 245W 40Nm hub motor

    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

    Riders Also Compared