2021 GT Bicycles Aggressor Expert 27.5"
- Category
- Hardtail Cross-country MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Fork
- Aluminum
- Suspension
- 80mm fork travel
- Features
- Disc brake
Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
XS | S | M | L | |
Stack | 566mm | 575mm | 584mm | 594mm |
Reach | 379mm | 400mm | 420mm | 439mm |
Stack to Reach Ratio | 1.49:1 | 1.44:1 | 1.39:1 | 1.35:1 |
Seat Tube Length, C-T | 380mm | 420mm | 460mm | 500mm |
Top Tube Length, Actual C-C | 532mm | 549mm | 569mm | 592mm |
Top Tube Slope | 22.5deg | 18.4deg | 14.6deg | 11.2deg |
Head Tube Angle | 68deg | 68deg | 68deg | 68deg |
Seat Tube Angle | 73.5deg | 73.5deg | 73.5deg | 73.5deg |
Head Tube Length | 110mm | 120mm | 130mm | 140mm |
Bottom Bracket Drop | 40mm | 40mm | 40mm | 40mm |
Bottom Bracket Height | 309.2mm | 309.2mm | 309.2mm | 309.2mm |
Chainstay Length | 440mm | 440mm | 440mm | 440mm |
Chainstay Length Horizontal | 438.2mm | 438.2mm | 438.2mm | 438.2mm |
Front-Center | 638mm | 662mm | 686mm | 709mm |
Front-Center Horizontal | 636.8mm | 660.8mm | 684.8mm | 707.8mm |
Wheelbase | 1075mm | 1099mm | 1123mm | 1146mm |
Fork Offset/Rake | 42mm | 42mm | 42mm | 42mm |
Trail | 95.8mm very high | 95.8mm very high | 95.8mm very high | 95.8mm very high |
Mechanical Trail | 88.8mm | 88.8mm | 88.8mm | 88.8mm |
Wheel Flop | 33.3mm | 33.3mm | 33.3mm | 33.3mm |
Standover Height | 707mm | 732mm | 757mm | 782mm |
Tire to Pedal Spindle | 118.9mm 170 mm cranks | 142.9mm 170 mm cranks | 166.9mm 170 mm cranks | 189.9mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 139.2mm 170 mm cranks | 139.2mm 170 mm cranks | 139.2mm 170 mm cranks | 139.2mm 170 mm cranks |
Expert 27.5" Build
XS | S | M | L | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 2.25in | 2.25in | 2.25in | 2.25in |
Tire Outer Diameter | 698.3mm | 698.3mm | 698.3mm | 698.3mm |
Bike Length with Tires | 1773.3mm | 1797.3mm | 1821.3mm | 1844.3mm |
Handlebar Width | 720mm | 720mm | 720mm | 720mm |
Stem Angle | 8deg | 8deg | 8deg | 8deg |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Hardtail Cross-country MTBSource:https://www.gtbicycles.com/can_en/aggressor-expert-3101