Bike Comparison
    Siena Disc2021 Tommaso
    Recommended
    MSRP
    $874
    Where to Buy
    —
    $1

    At

    Category
    		Gravel
    2.2
    Frame
    		Aluminum
    Fork
    		Aluminum
    Wheels
    		Aluminum
    Wheel Size
    		700c
    Brakes
    		Mechanical Disc
    Motor
    Battery
    Groupset
    		Tourney
    Drivetrain
    		3 × 7
    Brand Site

    tommasobikes.com

    Summary
    		The Tommaso Siena Disc is an aluminum frame gravel bike with mid-range components and mechanical disc brakes.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    smoothrugged
    Siena Disc
    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

    Siena Disc

    Highest gear

    (descending)

    Spec Level

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

    Geometry
    Specs
    Siena Disc2021 Tommaso
    Frame

    Tommaso 6061 SLA Aluminum Compact Road Frame

    Fork

    Tommaso SST Steel with Aluminum Steer Tube

    Bottom Bracket

    Shimano BB - UN26

    Headset

    1-1/8" Threadless Integrated

    Stem

    Tommaso Ultralight Sport Series Aluminum

    Handlebar

    Tommaso Ultralight Alloy Compact Flat Top Bar

    Saddle

    Tommaso Saddle

    Seatpost

    Tommaso TRS Ultralight Race Series Aluminum 27.2mm

    Pedals

    Composite Flat

    Groupset
    Rear Derailleur

    Shimano Tourney (7-spd)

    Front Derailleur

    Shimano Tourney (3-spd)

    Crank

    Shimano Tourney Triple 30/39/50T

    Shifters

    Shimano Tourney

    Cassette

    Shimano Tourney 12-28t - 7spd

    Chain

    KMC Z-51 (7spd Chain)

    Brakes

    Avid BB5 Disc Calipers

    Brake Levers

    Shimano Tourney

    Wheels
    Rims

    Tommaso Corsa TC-20D - 28 Spokes

    Tires

    CST Tirent All-Terrain 700x40c

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