GT Aggressor Sport Mountain Bike 27.5 Inch Black Yellow (2019)

Now $513.00 RRP $529.00 SAVE $16.00
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The GT Aggressor Expert is an extremely versatile 27.5 inch hardtail mountain bike that is built to take you from the town to the trails. The Aggressor Expert brings capable handling and comfortable, confidence-inspiring performance to the table in a single package. The 6061-T6 Aluminum Triple Triangle™ Frame w/ replaceable derailleur hanger is the basis for the durability and reliable performance the Aggressor Expert offers. The trusty frame is powered by a 24-speed Shimano Drivetrain, with enough range to help you up the steepest ascents and descents. The SR Suntour XCM fork with 80mm travel will help you tackle the bumps and then when you’re flying downhill you’ll need some assistance to stop. This is where the Tektro mechanical disc brakes will give you reliable stopping power regardless of the conditions.

The GT Aggressor Expert is an entry-level hardtail mountain bike that can help you commute on weekdays and hit the trails on the weekends, you really can do what you like. The Aggressor Expert is a reliable mountain bike that gives you everything you need to get started at an affordable price.


  • SR Suntour M3030 fork
  • Shimano Easy Fire Shifters, 3x7 / Tektro Mechanical Disc brakes
  • WTB SX19 Double wall Disc rims / WTB Transition 2.25" tires
  • 6061-T6 Aluminum Triple Triangle™ Frame


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More Information
Model Year2019
Bottom BracketCartridge Sealed
BrakesMechanical cable actuated disc, 160/160mm
Brake LeversAlloy
ChainKMC Z51, 7-speed
CranksetAll Terra, 42/34/24
Derailleur FrontShimano Tourney, 31.8 clamp
Derailleur RearShimano Tourney
ForkSR Suntour M3030, 75mm, Coil
Frame6061-T6 Aluminum Triple Triangle™ Frame, w/ Replaceable Derailleur Hanger, and 1 1/8"" Head Tube 27.5 Design"
GripsGT Statement logo grips
HandlebarGT All Terra Alloy Riser, 25mm rise, 8° sweep, 6° rise, 700mm
HeadsetSemi Integrated, Sealed cartridge
HubsFormula QR front and rear
PedalsGT Slim Line Flat Pedal
RimsWT SX19, 32h, Double Wall, disc
StemAlloy 1 1/8” Threadless, 4-Bolt W/ CNC Face Plate, 31.8, 8°
SpokesStainless Steel, 14g
ShiftersShimano EF41 Easyfire, 3x7
TyresWTB Transition, 27.5 x 2.25"
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About GT Bicycles

GT'S story is simple: speed, speed and even more speed. From GT’s namesake Gary Turner designing one of the first BMX race bikes in 1972 to the modern carbon fiber creations that redefine fast-as-hell, GT has built a long legacy of racing, winning, yet never taking things too seriously.

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Hardtail Mountain Bike Sizing Chart

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Rider's Height (cm)
Womens & Mens frame sizes

This is an accurate estimate, and every new bike comes with a free professional bike fit when you click & collect in store, plus all bikes have a 30 day Perfect Ride Guarantee.