| Model Number | G28101M |
| Model Name | Aggressor Expert |
| Frame | GT 6061 T6 Aluminum 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 |
| Fork | SR Suntour XCM-DS, 80mm, Hydraulic Lockout and Preload, Coil |
| Rims | WTB SX19, 32h |
| Spokes | Stainless Steel, 14g |
| Tires | WTB Ranger Comp, 27.5/29 x 2.25", DNA Compound |
| Pedals | GT Slim Line Flat Pedal |
| Crank | Prowheel 42/34/24t |
| Bottom Bracket | Cartridge, Square Taper |
| Chain | KMC Z8.3, 8-speed |
| Rear Cogs | microSHIFT H081, 12-32t, 8 Speed |
| Front Derailleur | microSHIFT M20 |
| Rear Derailleur | microSHIFT M26L, 8 Speed |
| Shifters | microSHIFT TS38, Thumb-Tap, 8-speed |
| Handlebar | GT All Terra Alloy Riser, 25mm Rise, 8° Sweep, 6° Rise, 720mm Width |
| Grips | GT Statement |
| Stem | GT All Terra, 6061 Alloy, 31.8, 8° |
| Headset | Semi-integrated, Sealed Cartridge |
| Brakes | Tektro M275 Hydro Disc, 160/160mm Rotor |
| Saddle | GT MTB |
| Seatpost | GT All Terra Two Bolt Alloy |
| Speeds | 24 Speed |
| Front Hub | Alloy Disc, QR |
| Rear Hub | Sealed Alloy Disc, QR |
