Bike Comparison
    MSRP
    ($2,251)
    $2,450
    $1,699
    Where to Buy
    $1

    At

    $1

    At

    $1

    At

    Category
    EnduranceEnduranceGravel
    Weight
    19.4 lbs20.0 lbs22.1 lbs
    5.7
    4.7
    4.4
    CarbonCarbonAluminum
    Fork
    CarbonCarbonCarbon
    Wheels
    AluminumAluminumAluminum
    Wheel Size
    700c700c700c
    Brakes
    Hydraulic DiscHydraulic DiscHydraulic Disc
    Groupset
    Ultegra, 105105, ShimanoGRX 800, GRX 600
    Drivetrain
    2 × 112 × 112 × 11
    Brand Site

    cube.eu

    giant-bicycles.com

    scott-sports.com

    Summary
    The CUBE ATTAIN GTC SL, Giant Defy Advanced 2, and Scott Speedster Gravel 20 are all road bikes with hydraulic disc brakes. The ATTAIN GTC SL has better components, while the Speedster Gravel 20 has an aluminum frame.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    2021 ATTAIN GTC SL
    2020 Defy Advanced 2
    2020 Speedster Gravel 20
    Other Endurance 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)

    39 mph

    2021 ATTAIN GTC SL

    39 mph

    2020 Defy Advanced 2

    36 mph

    2020 Speedster Gravel 20

    Highest gear

    (descending)

    Spec Level

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

    Geometry
    Specs
    Frame

    GTC Monocoque Twin Mold Technology, Flat Mount Disc, Road Comfort Geometry, AXH, 12x142mm

    ColorCarbon’n’white

    Advanced-Grade Composite, disc

    ColorCarbon’n’white

    Speedster Gravel Disc / D.Butted 6061 Alloy Endurance geometry / Integrated Headtube

    ColorCarbon’n’white

    Fork

    CUBE CSL Race Disc, Full Carbon, Flat Mount, 1 1/8" - 1 1/4" Tapered, 12x100mm

    Advanced-Grade Composite, full-composite OverDrive steerer, disc

    Speedster Gravel Carbon Disc 1 1/8"-1 1/4" Carbon steerer

    Shock

    N/A

    Bottom Bracket

    Shimano, press fit

    Shimano BB-RS500

    Headset

    VP, Top Integrated 1 1/8", Bottom Integrated 1 1/4"

    Integrated Steel Cup tapered

    Stem

    Newmen Evolution 318.4, 31.8mm

    Giant Contact

    JD ST123A Alloy 1 1/8" / four Bolt 31.8mm

    Handlebar

    Newmen Evolution Wing Bar

    Giant Contact SL D-Fuse

    Syncros Creston 2.0 Flare Alloy 31.8mm

    Saddle

    Natural Fit Nuance Lite

    Contact (neutral)

    Syncros Tofino Regular 2.5

    Seatpost

    Newmen Evolution, 27.2mm

    Giant D-Fuse, composite

    Syncros RR2.5 27.2/300mm

    Pedals

    N/A

    Groupset
    Rear Derailleur

    Shimano Ultegra RD-R8000-DGS, 11-Speed

    Shimano 105

    Shimano GRX RD-RX810 22 Speed

    Front Derailleur

    Shimano Ultegra FD-R8000-BM, 31.8mm

    Shimano 105

    Shimano GRX FD-RX810-F

    Crank

    Shimano Ultegra FC-R8000, Hollowtech II, 50x34T, 170mm (50/53cm), 172.5mm (56/58cm), 175mm (60/62cm)

    Shimano FC-R510, 34/50

    Shimano GRX FC-RX600-11 46x30T

    Shifters

    Shimano 105 ST-R7020

    Shimano 105

    Shimano GRX ST-RX600 Disc 22 Speed

    Cassette

    Shimano CS-R7000, 11-32T

    Shimano 105, 11x34

    Shimano CS-HG700 11-34

    Chain

    Shimano CN-HG601-11

    KMC X11EL-1

    KMC X11

    Brakes

    Shimano 105 BR-R7070, Hydr. Disc Brake, Flat Mount (160/160)

    Shimano 105 hydraulic

    Shimano BR-RX400 Hyd Disc 160/F and 160/R SM-RT70 CL rotor

    Brake Levers

    Shimano 105

    Wheels
    Rims

    Fulcrum Racing 77 DB

    Giant P-R2 Disc wheelset

    Syncros Race 24 Disc 28 Front / 28 Rear

    Spokes

    Giant P-R2 Disc wheelset

    SHA-DAR Black 2mm

    Front Hub

    Giant P-R2 Disc wheelset, 12mm thru-axle

    Formula Team CL Disc 28 H

    Rear Hub

    Giant P-R2 Disc wheelset, 12mm thru-axle

    Formula Team CL Disc 28 H

    Tires

    Conti Grand Sport Race SL, 28-622

    Giant Gavia Fondo 1, tubeless, 700x32, folding

    Schwalbe G-One Allround 700x35C

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