How to Choose Mountain Bikes

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Explore more of the greatest outdoors with the lightweight GT Aggressor Comp mountain bike, featuring a strong and durable aluminum frame for casual off-road discoveries.
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Best Use | Mountain Biking |
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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 XCT, 80 mm, coil |
Fork Travel | 80 millimeters |
Crankset | Prowheel alloy, 42/34/24T |
Bottom Bracket | Cartridge, square taper |
Shifters | 39-8, 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 | Tektro Mech Disc Brakes, 160/160 mm Rotors |
Brake Levers | Tektro Mech Disc Brakes |
Rims | WTB SX19, 32 h |
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 |
S | M | L | |
---|---|---|---|
Reach | 40 | 42 | 43.9 |
Stack | 57.5 | 58.4 | 59.4 |
Seat Tube Center-Top | 42 | 46 | 50 |
Standover Height | 73.2 | 75.7 | 78.2 |
Head Tube Length | 12 | 13 | 14 |
Head Tube Angle (degrees) | 68 | 68 | 68 |
Seat Tube Angle (degrees) | 73.5 | 73.5 | 73.5 |
Bottom Bracket Height | 31.5 | 31.5 | 31.5 |
Wheelbase | 109.9 | 112.3 | 114.6 |
Chainstay | 44 | 44 | 44 |
Fork Offset | 4.2 | 4.2 | 4.2 |
Measurements are stated in centimeters unless otherwise indicated.