2024 Thompson Grammont Base S
Build
700C/29 in × 25 mm
Insights
Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of Thompson Grammont
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 509mm |
| Reach | 376mm |
| Stack to Reach Ratio | 1.35:1 |
| Seat Tube Length, C-TTT | 490mm |
| Top Tube Length, Actual C-C | 531mm |
| Top Tube Slope | 2.3deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 68mm |
| Bottom Bracket Height | 268mm |
| Chainstay Length | 405mm |
| Chainstay Length Horizontal | 399.3mm |
| Front-Center | 569mm |
| Front-Center Horizontal | 564.8mm |
| Wheelbase | 964mm |
| Fork Offset/Rake | 43mm |
| Trail | 64mm mid/neutral |
| Mechanical Trail | 60.8mm |
| Wheel Flop | 18.8mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 63mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 98mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1636mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://thompson-bikebuilder.be/de/produkt/grammont/