GT Aggressor Expert Mountain Bike Slate Blue (2021)
Up to 12 months interest free
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If you don't love it, you can swap it, up to 30 days from purchase!* Learn more »
Free Bike Build
We'll build your bike for free when you click and collect at any 99 Bikes store.
First Free Tune-up
Every bike come with a complimentary free tune-up and safety check.
Please note, due to challenges in the product supply chain, bike specifications are subject to change without notice. Specifications listed below may not match exactly as shown in the photo.
Please Note: Specifications may be subject to change for this bike, please check with your local store for more information.
The GT Aggressor Expert is an agile hardtail that will help you ride like an expert from day one. This bike could be your everyday bike to go from the trails to your local bike paths and everywhere in between. I tall starts with then lightweight 6061 alloy frame with floating seat stays which improve comfort so you can spend more time in the saddle and enjoy the Aggressor on longer rides. GT built his bike for off-road use but it's also a capable commuter rolling on the fast WTB Ranger Comp tyres and WTB SX19 rims.
While the SR Suntour XCM-DS fork with 80mm travel can handle some of the rougher trails in relative comfort. But the Tektro M275 Hydraulic Disc Brakes really are the standout on the Aggressor, offering excellent stopping power on any trails and in any conditions. GT equipped this bike with a range of high-quality components, including microSHIFT front and rear derailleurs, shifters and cassette. It all adds up to a reliable recreational mountain bike with components and design that will last for hours of fun on the trails.
- 6061 T6 Alloy Frame
- Suntour XCM-DS Fork - 80mm Travel
- microSHIFT Drivetrain
- Tektro M275 Hydraulic Disc Brakes
- WTB Ranger Comp 27.5"x2.25" Tyres
- Size Split: XS/SM - 27.5", MD,LG,XL- 29"
|Click & Collect||Yes|
|Wheel Size||29" / 27.5"|
|Cassette Type||8 Speed|
|Brake Type||Hydraulic Disc Brake|
|Front Travel||under 100mm|
|Bottom Bracket||Cartridge, Square Taper|
|Brakes||Tektro M275 Hydro Disc, 160/160mm Rotors|
|Brake Levers||Tektro M275 Hydro Disc, 160/160mm Rotors|
|Cassette||Microshift CS-H081 8s, 12-32T|
|Chain||KMC Z8.3, 8-speed|
|Crankset||Prowheel TA-CM68-D 42-34-24T|
|Derailleur Front||Microshift FD-M20|
|Derailleur Rear||Microshift RD-M26L|
|Fork||SR Suntour XCM-DS, 80mm, Hydraulic Lockout and Preload, Coil|
|Frame||GT 6061 T6 Aluminium Frame, Triple Triangle w/ Floating Seat Stays, Forged Drop-outs w/ Disc Brake Mounts, Zero Stack 1 1/8” Head Tube, 27.5/29” Wheels|
|Handlebar||GT All Terra Alloy Riser, 25mm Rise, 8° Sweep, 6° Rise, 720mm Width|
|Headset||Semi-integrated, Sealed Cartridge|
|Hubs||Alloy Disc Cassette QR, 28H|
|Pedals||GT Slim Line Flat Pedal|
|Rims||WTB SX19, 32h|
|Seatpost||GT All Terra Two Bolt Alloy|
|Stem||GT All Terra, 6061 Alloy, 31.8, 8°|
|Spokes||Stainless Steel, 14g|
|Shifters||Microshift TS38 8s Thum-tap Shifters|
|Tyres||WTB Ranger Comp, 27.5/29 x 2.25", DNA Compound|
|Speeds||3 x 8|
|Sizing SKUs||LG: GTG28101M10LG, MD: GTG28101M10MD, SM: GTG28101M10S7, XL: GTG28101M10XL, XS: GTG28101M10XS|
GT Bikes Aggressor Sizing Chart
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.
ST Seat Tube
TT Top Tube
CS Chain Stay Length
HTA Head Tube Angle
STA Seat Tube Angle
BD Bottom bracket Drop
HT Head Tube
FL Fork Length
WB Wheel Base
|XS||SM||MD||LG||XL||Wheel Size||27.5" (650b)||27.5" (650b)||27.5" (650b)||27.5" (650b)||27.5" (650b)||Frame Size||XS||SM||MD||LG||XL||ST Seat Tube (mm)||380.0||420.0||460.0||500.0||540.0||TT Top Tube (mm)||532.0||549.0||580.0||601.0||624.0||CS Chain Stay Length (mm)||440.0||440.0||445.0||445.0||445.0||HTA Head Tube Angle (°)||68.0||68.0||68.0||68.0||68.0||STA Seat Tube Angle (°)||73.5||73.5||73.5||73.5||73.5||HT Head Tube (mm)||110.0||120.0||130.0||140.0||150.0||R Reach (mm)||379.0||400.0||420.0||440.0||459.0||S Stack (mm)||566.0||575.0||619.0||628.0||638.0||WB Wheel Base (mm)||1075.0||1099.0||1141.0||1165.0||1188.0|
- Knog Oi Classic Bike Bell (Black)$29.99 $27.00 $24.30
- BBB MaxiFold 18 Multi Tool$44.99 $37.00 $33.30
- Azur CO2 Cartridge 16g$5.99 $4.00 $3.60
- Rock n Roll Gold Dry Lube 4oz$15.99 $13.00 $11.70
- BBB Bright & Fresh Chain Cleaner$49.99 $45.00 $40.50
- 99 Bikes 10-in-1 Multi Tool$19.99 $18.00 $16.20
- BBB Airspeed CO2 Pump$29.99 $28.00 $25.20
- BBB Easy Fit Bell Black$11.99 $11.00 $9.90