2026 Trek Bikes Checkpoint ALR Gen 3 S
Build
700C/29 in × 42 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 | 566mm |
| Reach | 385mm |
| Stack to Reach Ratio | 1.47:1 |
| Seat Tube Length, C-T | 520mm |
| Top Tube Length, Effective/Horizontal Center | 548mm |
| Top Tube Slope | 7.2deg |
| Head Tube Angle | 71.6deg |
| Seat Tube Angle | 73.7deg |
| Head Tube Length | 117mm |
| Bottom Bracket Drop | 78mm |
| Bottom Bracket Height | 275mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 428mm |
| Front-Center | 610.1mm |
| Front-Center Horizontal | 605.1mm |
| Wheelbase | 1033mm |
| Fork Offset/Rake | 49mm |
| Trail | 65.8mm high |
| Mechanical Trail | 62.4mm |
| Wheel Flop | 19.7mm |
| Standover Height | 765mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 87.1mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 105mm |
ALR Gen 3 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 42mm |
| Tire Outer Diameter | 706mm |
| Bike Length with Tires | 1739mm |
| 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/bikepacking-touring-bikes/checkpoint/checkpoint-alr/checkpoint-alr-5-gen-3/p/49946/?colorCode=bluelight_teal