2026 Trek Bikes Checkpoint ALR Gen 3 XL
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 | 650mm |
| Reach | 408mm |
| Stack to Reach Ratio | 1.59:1 |
| Seat Tube Length, C-T | 610mm |
| Top Tube Length, Effective/Horizontal Center | 604mm |
| Top Tube Slope | 6.7deg |
| Head Tube Angle | 72.6deg |
| Seat Tube Angle | 72.1deg |
| Head Tube Length | 201mm |
| Bottom Bracket Drop | 74mm |
| Bottom Bracket Height | 279mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 428.7mm |
| Front-Center | 645.6mm |
| Front-Center Horizontal | 641.3mm |
| Wheelbase | 1070mm |
| Fork Offset/Rake | 49mm |
| Trail | 59.3mm mid/neutral |
| Mechanical Trail | 56.6mm |
| Wheel Flop | 16.9mm |
| Standover Height | 859mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 122.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 109mm |
ALR Gen 3 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 42mm |
| Tire Outer Diameter | 706mm |
| Bike Length with Tires | 1776mm |
| 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