2019 GT Bicycles Aggressor Expert 27.5" Medium
Build
650B/27.5 in × 2.1 in
Insights
Somewhat aggressive stack and reach vs trend of hardtail cross-country mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 589mm |
| Reach | 431mm |
| Stack to Reach Ratio | 1.37:1 |
| Seat Tube Length, C-T | 430mm |
| Top Tube Length, Effective/Horizontal HT Top | 615mm |
| Top Tube Slope | 17.7deg |
| Head Tube Angle | 69.5deg |
| Seat Tube Angle | 72.7deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 45mm |
| Bottom Bracket Height | 300.3mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 432.7mm |
| Front-Center | 681mm |
| Front-Center Horizontal | 679.3mm |
| Wheelbase | 1112mm |
| Fork Offset/Rake | 42mm |
| Trail | 84.3mm very high |
| Mechanical Trail | 78.9mm |
| Wheel Flop | 27.7mm |
| Standover Height | 762mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 165.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 130.3mm |
Expert 27.5" Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.1in |
| Tire Outer Diameter | 690.7mm |
| Bike Length with Tires | 1802.7mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 80mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Disc |
Source:https://99spokes.com/bikes/gt/2019/aggressor-expert