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    E-BIG CITY2025 Opus
    Recommended
    MSRP
    ($2,159)
    Where to Buy
    —
    $1

    At

    Category
    		Commuter, E-Bike
    Weight
    		43.7 lbs
    6.9
    Frame
    		Aluminum
    		Aluminum
    Wheels
    		Aluminum
    Wheel Size
    		650b
    		Shimano Hydraulic Disc
    		Shimano 250W 40Nm mid-drive
    		Shimano 418Wh
    		CUES
    Drivetrain
    		1 × 9
    Brand Site

    opusbike.com

    Summary
    		The Opus E-BIG CITY is a 650b aluminum frame commuter e-bike with mid-range components and shimano hydraulic disc brakes.

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    Insights
    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)

    28 mph

    E-BIG CITY

    Highest gear

    (descending)

    Spec Level

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

    Geometry
    Specs
    E-BIG CITY2025 Opus
    Frame

    Lightweight 6061 aluminum frame

    Color: Stealth Black

    Fork

    Aluminum tapered 1-1/2 to 1-1/8 in

    Bottom Bracket

    N/A

    Headset

    FSA Orbit integrated sealed

    Stem

    Promax 70/80mm

    Handlebar

    Promax 620mm 35º backsweep

    Saddle

    Opus E-City

    Seatpost

    Promax 31.6 x 350mm

    Type: Rigid

    Pedals

    FPD NW-247

    Groupset
    Rear Derailleur

    Shimano CUES U3020

    Front Derailleur

    N/A

    Crank

    Shimano FC-E5000

    Shifters

    Shimano CUES U4000 9

    Cassette

    Shimano 11-36

    Chain

    KMC eGlide EPT

    Brakes

    Shimano BR-MT201 hydraulic disc

    Type: Shimano Hydraulic Disc

    Brake Levers

    Shimano BL-MT201

    Wheels
    Rims

    Weinnman U32 TL

    Front Hub

    Formula/Shimano

    Rear Hub

    Formula/Shimano

    Tires

    Kenda Kwick Seven.5 27.5 x 2.4

    Electric Components
    Motor

    Shimano E-5000 250W 40Nm

    Battery

    Shimano E-8014 418Wh 36V 11.6Ah battery

    Display

    SC-E5000 Switch with integrated display

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