2020 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 upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
Extra Small | Small | Medium | Large | |
Stack | 610mm | 619mm | 628mm | 638mm |
Reach | 399mm | 420mm | 440mm | 459mm |
Stack to Reach Ratio | 1.53:1 | 1.47:1 | 1.43:1 | 1.39:1 |
Seat Tube Length, C-T | 420mm | 460mm | 500mm | 540mm |
Top Tube Length, Effective/Horizontal Center | 580mm | 603mm | 626mm | 648mm |
Top Tube Slope | 21.8deg | 17.9deg | 14.3deg | 11.1deg |
Head Tube Angle | 68.5deg | 68.5deg | 68.5deg | 68.5deg |
Seat Tube Angle | 73.5deg | 73.5deg | 73.5deg | 73.5deg |
Head Tube Length | 120mm | 130mm | 140mm | 150mm |
Bottom Bracket Drop | 60mm | 60mm | 60mm | 60mm |
Bottom Bracket Height | 289.2mm | 289.2mm | 289.2mm | 289.2mm |
Chainstay Length | 445mm | 445mm | 445mm | 445mm |
Chainstay Length Horizontal | 440.9mm | 440.9mm | 440.9mm | 440.9mm |
Front-Center | 678.7mm | 702.6mm | 726.6mm | 749.5mm |
Front-Center Horizontal | 676.1mm | 700.1mm | 724.1mm | 747.1mm |
Wheelbase | 1117mm | 1141mm | 1165mm | 1188mm |
Fork Offset/Rake | 56.2mm | 55.7mm | 56.1mm | 56.2mm |
Trail | 77.1mm high | 77.7mm high | 77.2mm high | 77.2mm high |
Mechanical Trail | 71.8mm | 72.3mm | 71.8mm | 71.8mm |
Wheel Flop | 26.3mm | 26.5mm | 26.3mm | 26.3mm |
Standover Height | 742mm | 767mm | 792mm | 817mm |
Tire to Pedal Spindle | 159.6mm 170 mm cranks | 183.5mm 170 mm cranks | 207.4mm 170 mm cranks | 225.3mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 119.2mm 170 mm cranks | 119.2mm 170 mm cranks | 119.2mm 170 mm cranks | 114.2mm 175 mm cranks |
Expert 27.5" Build
Extra Small | Small | Medium | Large | |
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 | 1815.3mm | 1839.3mm | 1863.3mm | 1886.3mm |
Crank Length | — | — | — | 175mm |
Handlebar Width | 720mm | 720mm | 720mm | 720mm |
Stem Length | 90mm | 90mm | 90mm | 90mm |
Stem Angle | — | — | — | 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.jensonusa.com/gt-aggressor-expert-bike-2020?utm_source=chatgpt.com