2021 GT Bicycles Grade Carbon (55mm Offset) 61
Build
700C/29 in × 40 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of GT Bicycles Grade
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 634mm |
| Reach | 408mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-T | 605mm |
| Top Tube Length, Effective/Horizontal HT Top | 602mm |
| Top Tube Slope | 5.4deg |
| Head Tube Angle | 72.3deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 210mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 281mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 424.3mm |
| Front-Center | 650mm |
| Front-Center Horizontal | 645.7mm |
| Wheelbase | 1070mm |
| Fork Offset/Rake | 55mm |
| Trail | 54.3mm mid/neutral |
| Mechanical Trail | 51.7mm |
| Wheel Flop | 15.7mm |
| Standover Height | 851mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 129mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 111mm |
Carbon (55mm Offset) Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 40mm |
| Tire Outer Diameter | 702mm |
| Bike Length with Tires | 1772mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.gtbicycles.com/gbr_en/grade-carbon-elite-3080