2021 GT Bicycles Grade Al Expert 2021 55
Build
700C/29 in × 37 mm
Insights
Design deviates from other sizes of GT Bicycles Grade
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 59mm |
| Reach | 39.4mm |
| Stack to Reach Ratio | 1.5:1 |
| Seat Tube Length, C-T | 53.1mm |
| Top Tube Length, Effective/Horizontal Unknown | 57.4mm |
| Top Tube Slope | 8.3deg |
| Head Tube Angle | 72.3deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 16mm |
| Bottom Bracket Drop | 7.3mm |
| Bottom Bracket Height | 340.7mm |
| Chainstay Length | 44.5mm |
| Chainstay Length Horizontal | 43.9mm |
| Front-Center | 62.1mm |
| Front-Center Horizontal | 61.6mm |
| Wheelbase | 105.5mm |
| Fork Offset/Rake | 5.5mm |
| Trail | 105.3mm very high |
| Mechanical Trail | 100.3mm |
| Wheel Flop | 30.5mm |
| Standover Height | 79.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | -455.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 170.7mm |
Al Expert 2021 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 37mm |
| Tire Outer Diameter | 696mm |
| Bike Length with Tires | 801.5mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.gtbicycles.sk/bicykle/2021-gravel-bike/grade-expert