GT Aggressor Sport Discover the freedom and fun of off-road riding with the Aggressor Sport. For recreational cyclists eager to escape the pavement, this lightweight hardtail mountain bike is ready to cruise the path ahead with 75mm of front suspension for a plush and smooth ride. Whether you’re gearing up for more miles or bigger hills, the microSHIFT thumb tap shifters offer 21 speeds to find your perfect cadence, and the Tektro mechanical disc brakes provide crisp control when it’s time to slow (or stop) your roll. Accelerate or corner with ease thanks to the all-conditions WTB tires, and ride happily with the low profile pedals that provide extra clearance between obstacles and your feet.     Frame All new 6061 T6 Aluminum frame, Triple Triangle with floating seat stays, Forged drop-outs with disc brake mounts, Zero stack 1 1/8" head tube, 27.5/29" wheels Fork SR Suntour M3030, 75mm, Coil Rims WTB SX19, 32h Spokes Stainless Steel, 14g Pedals GT Slim Line Flat Pedal Crank All Terra, 42/34/24 Bottom Bracket Cartridge, square taper Chain KMC Z51, 7-speed Rear Cogs Sunrace, 14-34, 7-speed Front Derailleur Shimano Tourney, 31.8 clamp Rear Derailleur Shimano Tourney Shifters Microshift, 3x7 Handlebar GT All Terra Alloy Riser, 25mm rise, 8° sweep, 6° rise, 720mm width Grips GT Statement2 Single Lock-on Grips Stem 6061 Alloy, 31.8, 8°, 90mm Headset Semi Integrated, Sealed cartridge Brakes Tektro hydraulic disc, 160/160mm rotors Brake Levers Alloy Saddle GT MTB Seatpost Alloy Micro Adjust 27.2 x 300mm Speeds 21 Sizes Available XS,S,M,L(27.5"), S,M,L,XL(29") Fork Travel (F) 75mm Front Hub Sealed Alloy Disc, QR Front Tire WTB Ranger Comp, 27.5/29 x 2.25", DNA Compound Front Tire Size 2.25 Material Aluminum Rear Hub Sealed Alloy Disc, QR Rear Tire WTB Ranger Comp, 27.5/29 x 2.25", DNA Compound Wheel Size 27.5/29"   Specs may vary dependent on production date.