2025 Trek Bikes Checkpoint ALR 4 56 cm
Build
700C/29 in × 40 mm
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 592mm |
| Reach | 407mm |
| Stack to Reach Ratio | 1.45:1 |
| Seat Tube Length, Unknown | 560mm |
| Top Tube Length, Effective/Horizontal Center | 584mm |
| Top Tube Slope | 5.7deg |
| Head Tube Angle | 72.2deg |
| Seat Tube Angle | 72.8deg |
| Head Tube Length | 145mm |
| Bottom Bracket Drop | 76mm |
| Bottom Bracket Height | 275mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 428.3mm |
| Front-Center | 624.3mm |
| Front-Center Horizontal | 619.7mm |
| Wheelbase | 1048mm |
| Fork Offset/Rake | 44.8mm |
| Trail | 65.7mm high |
| Mechanical Trail | 62.5mm |
| Wheel Flop | 19.1mm |
| Standover Height | 809mm |
| Tire to Pedal Spindle Distance With 172.5 mm cranks | 100.8mm |
| Pedal Spindle to Ground Clearance With 172.5 mm cranks | 102.5mm |
ALR 4 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 40mm |
| Tire Outer Diameter | 702mm |
| Bike Length with Tires | 1750mm |
| Crank Length | 172.5mm |
| Handlebar Width | 42cm |
| Stem Length | 90cm |
| Stem Angle | 7deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Rim |
Published Sizing Recommendations
| Height | 5 ft 9 in to 5 ft 11 in |
Source:https://www.trekbikes.com/us/en_US/bikes/bikepacking-touring-bikes/checkpoint/checkpoint-alr/checkpoint-alr-4/p/41513/?colorCode=grey