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    BIG CITY2024 Opus
    Recommended
    MSRP
    ($647)
    Where to Buy
    —
    $1

    At

    Category
    		Commuter
    Weight
    		26.2 lbs
    5.8
    Frame
    		Aluminum
    		Aluminum
    Wheels
    		Aluminum
    Wheel Size
    		650b
    		Shimano Hydraulic Disc
    		Altus
    Drivetrain
    		3 × 9
    Brand Site

    opusbike.com

    Summary
    		The Opus BIG CITY is a 650b aluminum frame commuter bike with modest 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)

    33 mph

    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
    BIG CITY2024 Opus
    Frame

    Meta 20 Alloy

    Color: Silver

    Fork

    Aluminum tapered 1-1/4 to 1-1/8 in

    Bottom Bracket

    Shimano sealed cartridge

    Headset

    FSA Orbit integrated sealed

    Stem

    Promax

    Handlebar

    Alloy butted 12 mm rise

    Saddle

    Opus City

    Seatpost

    Promax alloy 27.2 x 300

    Type: Rigid

    Pedals

    FPD NW-247

    Groupset
    Rear Derailleur

    Shimano Altus

    Crank

    Shimano FC-MT101

    Shifters

    Shimano ST-EF505 3 x 9

    Cassette

    Shimano 11-28

    Chain

    KMC-Z9

    Brakes

    Shimano BR-MT200 hydraulic disc

    Type: Shimano Hydraulic Disc

    Brake Levers

    Shimano

    Wheels
    Rims

    Weinmann U28 650

    Front Hub

    Joytech

    Rear Hub

    Joytech

    Tires

    Kenda Kwick Seven.5 650 x 45

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