2026 Trek Bikes Checkpoint ALR Gen 3 M
Build
700C/29 in × 42 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 589mm |
| Reach | 391mm |
| Stack to Reach Ratio | 1.51:1 |
| Seat Tube Length, C-T | 540mm |
| Top Tube Length, Effective/Horizontal Center | 568mm |
| Top Tube Slope | 7.5deg |
| Head Tube Angle | 71.8deg |
| Seat Tube Angle | 73.2deg |
| Head Tube Length | 140mm |
| Bottom Bracket Drop | 76mm |
| Bottom Bracket Height | 277mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 428.3mm |
| Front-Center | 617.4mm |
| Front-Center Horizontal | 612.7mm |
| Wheelbase | 1041mm |
| Fork Offset/Rake | 49mm |
| Trail | 64.5mm mid/neutral |
| Mechanical Trail | 61.3mm |
| Wheel Flop | 19.1mm |
| Standover Height | 789mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 94.4mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 107mm |
ALR Gen 3 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 42mm |
| Tire Outer Diameter | 706mm |
| Bike Length with Tires | 1747mm |
| 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