2021 GT Bicycles Grade Al Expert 2021 61
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 | 63.4mm |
| Reach | 40.8mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-T | 60.5mm |
| Top Tube Length, Effective/Horizontal Unknown | 60.2mm |
| Top Tube Slope | 5.1deg |
| Head Tube Angle | 72.3deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 21mm |
| Bottom Bracket Drop | 7mm |
| Bottom Bracket Height | 341mm |
| Chainstay Length | 44.5mm |
| Chainstay Length Horizontal | 44mm |
| Front-Center | 65mm |
| Front-Center Horizontal | 64.6mm |
| Wheelbase | 108.5mm |
| Fork Offset/Rake | 5.5mm |
| Trail | 105.3mm very high |
| Mechanical Trail | 100.3mm |
| Wheel Flop | 30.5mm |
| Standover Height | 85.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | -453mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 171mm |
Al Expert 2021 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 37mm |
| Tire Outer Diameter | 696mm |
| Bike Length with Tires | 804.5mm |
| 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