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Giant Roam E+ GTS

Sizing Guide



The Full Scoop on the Giant Roam E+ GTS


  • Choose a route, any route. With its all-road capabilities and smooth, natural pedaling support, Roam E+ helps you ride smooth roads, rough roads, bike paths or trails. It’s fun, easy and ready to roll.

  • Components subject to manufacturer changes.

  • Motor SyncDrive Core, 50Nm, Powered by Yamaha
    Battery EnergyPak 400Wh
    Display ANT+ Wireless display compatible
    Charger Spec not provided
  • Frame ALUXX Aluminum, Overdrive 1½ - 1⅛" head tube, integrated KS18 kickstand mount
    Fork SR Suntour NEX E25 63mm travel
    Rear Shock Not applicable
    Front Brake Tektro HD-M275, hydraulic disc, 160/180mm
    Rear Brake Tektro HD-M275, hydraulic disc, 160/180mm
    Rear Derailleur

    Shimano Alivio, 9-speed

    Shift Levers Shimano Altus
    Chain KMC e.9 Sport, e-bike optimized
    Cassette Shimano CS-HG200, 11-36T, 9-speed
    Crankset Forged Alloy minimal Q-factor, 42T
    Chain Ring Spec not provided
    Chain Guard Spec not provided
    Rims Giant GX03V, 622x21mm Aluminum
    Front Hub Giant eTracker, 100x9mm QR
    Rear Hub Giant eTracker, 135mm QR
    Front Tire Giant Crosscut Gravel 2, 700x45c (622x45), Tubeless Ready W/O Reflex (GU: w/reflex)
    Rear Tire

    Giant Crosscut Gravel 2, 700x45c (622x45), Tubeless Ready W/O Reflex (GU: w/reflex)

    Handlebar Giant Connect Riser 31.8x620mm
    Stem Giant Contact
    Headset Spec not provided
    Grips Giant Connect Ergo
    Saddle Giant Sport Comfort
    Seatpost Giant 30.9mm, 2-bolt Micro Adjustable, Forged Aluminum
  • Pedals PP Pedal
    Front Light Not applicable
    Rear Light Not applicable
    Kickstand Not applicable
    Rear Carrier Not applicable
    Fenders Not applicable
    Bell Not applicable
    Lock Not applicable
    Mirror Not applicable



  • S M L XL
    RIDER HEIGHT 5'3" - 5'7" 5'7" - 5'11" 5'11" - 6'3" 6'3" - 6'7"
    SEAT TUBE LENGTH (inch)
    A 17.1
    19.1 21.1 23
    SEAT TUBE ANGLE B 74.0° 73.0° 73.0° 73.0°
    TOP TUBE LENGTH (inch) C 22.4 23.2 24 24.8
    HEAD TUBE LENGTH (inch) D 5.1 5.5 6.1 6.7
    HEAD TUBE ANGLE E 69.5° 69.5° 69.5° 69.5°
    FORK RAKE (inch) F 1.7 1.7 1.7 1.7
    TRAIL (inch) G 3.6 3.6 3.6 3.6
    WHEELBASE (inch) H 43.8 44.1
    45 45.8
    CHAIN STAY LENGTH (inch) I 17.9 17.9 17.9 17.9
    BOTTOM BRACKET DROP (inch) J 2.4 2.4 2.4 2.4
    STACK (inch) K 24 24.4 24.9 25.5
    REACH (inch) L 15.6 15.7 16.4 17
    STAND OVER HEIGHT (inch) M 29.3 30.5 31.8 33.2
    HANDLEBAR WIDTH (inch) N 27.2 27.2 27.2 27.2
    STEM LENGTH (inch) O 2.4
    2.8
    3.1
    3.5
    CRANK LENGTH (inch) P 6.7 6.7 6.7 6.7
    WHEEL SIZE Q 700C 700C 700C 700C

  • Motor Giant SyncDrive Core, 50Nm, 5-mode plus automatic, 360% tunable support, powered by YAMAHA. Pedal support to 20 mph.
    Battery EnergyPak 400Wh, 36V, 11.3Ah rechargeable lithium-ion
    Display *wireless display compatible
    Charger Giant EnergyPak 3A Fast charge
    Frame ALUXX SL Grade Aluminum
    Fork SR Suntour NEX E25 NLO 63mm travel
    Rear Shock Not applicable
    Front Brake Tektro HD-M275, hydraulic disc, 180mm
    Rear Brake Tektro HD-M275, hydraulic disc, 160mm
    Rear Derailleur Shimano Alivio
    Shift Levers Shimano Altus
    Chain KMC X.9 Sport, e-bike optimized
    Cassette Shimano HG200, 11-36T, 9-speed
    Crankset Forged Alloy 42T
    Chain Ring Spec not provided
    Chain Guard Spec not provided
    Rims Giant GX03 disc wheelset
    Front Hub Alloy disc, QR
    Rear Hub Alloy disc, QR
    Front Tire Giant Crosscut Gravel 2, 700x45c Tubeless Ready
    Rear Tire Giant Crosscut Gravel 2, 700x45c Tubeless Ready
    Handlebar Giant Sport XC, 25.4
    Stem Giant Sport
    Headset Spec not provided
    Grips Spec not provided
    Saddle  Giant Sport Comfort
    Seatpost Alloy, 30.9mm
    Pedals Platform
    Front Light Not applicable
    Rear Light Not applicable
    Kickstand Spec not provided
    Rear Carrier Not applicable
    Fenders Not applicable
    Bell Not applicable
    Lock Not applicable
    Mirror Not applicable

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