GT Aggressor Sport Mountain Bike - 2021

$467.73Compared to $625.00*
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Color: Gunmetal
Size: M
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Eager to escape the pavement? Discover the freedom and fun of off-road riding with the lightweight GT Aggressor Sport, a hardtail mountain bike that's ready to cruise the path ahead.

  • Features

    • Aluminum triple-triangle frame features dorged dropouts with disc brake mounts and X Guides to keep cables tucked away and tidy
    • 75 mm of front suspension offer a plush and smooth ride
    • Whether you're gearing up for more miles or bigger hills, the microSHIFT thumb tap 3 x 7-speed shifters offer 21 speeds to find your perfect cadence
    • Tektro mechanical disc brakes provide crisp control when it's time to slow (or stop) your roll
    • All-conditions WTB tires accelerate and corner with ease
    • Low-profile pedals provide extra clearance between obstacles and your feet
    • Closeout
    • Specs and images are subject to change

    Imported.

    This bike comes with Coast to Coast Support, which includes:
    • 1 year of free adjustments (see more below)
    • In-store bike assembly
    • Pickup in store or curbside
    • Bike experts available at 170+ bike shops
    REI Co-op Members get more:
    • Free flat tire repairs (labor only; parts not included)
    • 20% off shop services
    More about our free adjustments:
    New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.

    View all GT Hardtail Mountain Bikes
  • Technical Specs

    Best Use

    Mountain Biking

    Mountain Bike Style

    Trail

    Frame

    GT 6061 T6 aluminum Triple Triangle with floating seatstays; zero stack 1-1/8 in. head tube

    Bike Suspension

    Front Suspension

    Fork

    SR Suntour M3030, 75 mm, coil

    Fork Travel

    75 millimeters

    Crankset

    Prowheel alloy, 42/34/24T

    Bottom Bracket

    Cartridge, square taper

    Shifters

    microSHIFT TS38, 3 x 7-speed

    Front Derailleur

    microSHIFT FD-M20M

    Rear Derailleur

    microSHIFT RD-M26C

    Rear Cogs

    14-34T, 7-speed

    Number of Gears

    21 gear(s)

    Brake Type

    Mechanical Disc Brake

    Brakes

    Mechanical disc

    Brake Levers

    Mechanical disc

    Rims

    WTB SX19, 32H

    Front Hub

    Alloy disc, 100 mm quick-release

    Rear Hub

    Alloy disc, 141 mm quick-release

    Wheel Size

    27.5 inches

    Tires

    WTB Ranger Comp, 27.5/29 x 2.25 in., DNA Compound

    Tire Width

    2.25 inches

    Handlebar Shape

    Riser Bar

    Handlebar

    GT All Terra Alloy Riser, 25 mm rise, 8 deg. sweep, 6 deg. rise, 720 mm width

    Stem

    GT All Terra, 6061 alloy, 31.8 mm, 8 deg.

    Seat Post

    GT All Terra 2-bolt alloy

    Saddle

    GT MTB

    Pedals

    GT Slim Line Flat pedal

    Headset

    Semi-integrated, sealed cartridge

    Chain

    KMC Z7, 7-speed

    Weight

    Unavailable

    Gender

    Unisex

  • Size Chart

    SML
    Reach404243.9
    Stack57.558.459.4
    Seat Tube Center-Top424650
    Standover Height73.275.778.2
    Head Tube Length121314
    Head Tube Angle (degrees)686868
    Seat Tube Angle (degrees)73.573.573.5
    Bottom Bracket Height31.531.531.5
    Wheelbase109.9112.3114.6
    Chainstay444444
    Fork Offset4.24.24.2

    Sizing Notes

    Measurements are stated in centimeters unless otherwise indicated.

    How we measure bikes

    1. Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.
    2. Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
    3. Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.
    4. Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.
    5. Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.
    6. Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
    7. Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
    8. Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
    9. Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
    10. Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
    11. Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
    12. Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.
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