2020 Trek Bikes Checkpoint AL 4 52
Build
700C/29 in × 32 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Trek Bikes Checkpoint
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 561mm |
| Reach | 376mm |
| Stack to Reach Ratio | 1.49:1 |
| Seat Tube Length, Unknown | 475mm |
| Top Tube Length, Effective/Horizontal Unknown | 537mm |
| Top Tube Slope | 11.6deg |
| Head Tube Angle | 71.7deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 78mm |
| Bottom Bracket Height | 265mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 422.9mm |
| Front-Center | 593.3mm |
| Front-Center Horizontal | 588.1mm |
| Wheelbase | 1011mm |
| Fork Offset/Rake | 50mm |
| Trail | 60.8mm mid/neutral |
| Mechanical Trail | 57.7mm |
| Wheel Flop | 18.1mm |
| Standover Height | 755mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 80.3mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 95mm |
AL 4 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 32mm |
| Tire Outer Diameter | 686mm |
| Bike Length with Tires | 1697mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.trekbikes.com/us/en_US/bikes/road-bikes/gravel-bikes/checkpoint/checkpoint-al/checkpoint-al-4/p/24971/