2026 Trek Bikes Checkpoint ALR 5 Gen 3 L
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 | 630mm |
| Reach | 402mm |
| Stack to Reach Ratio | 1.57:1 |
| Seat Tube Length, C-T | 550mm |
| Top Tube Length, Effective/Horizontal Center | 592mm |
| Top Tube Slope | 10.5deg |
| Head Tube Angle | 72.3deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 181mm |
| Bottom Bracket Drop | 74mm |
| Bottom Bracket Height | 279mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 428.7mm |
| Front-Center | 633.7mm |
| Front-Center Horizontal | 629.3mm |
| Wheelbase | 1058mm |
| Fork Offset/Rake | 49mm |
| Trail | 61.2mm mid/neutral |
| Mechanical Trail | 58.3mm |
| Wheel Flop | 17.7mm |
| Standover Height | 829mm |
| Tire to Pedal Spindle Distance With 172.5 mm cranks | 108.2mm |
| Pedal Spindle to Ground Clearance With 172.5 mm cranks | 106.5mm |
ALR 5 Gen 3 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 42mm |
| Tire Outer Diameter | 706mm |
| Bike Length with Tires | 1764mm |
| Crank Length | 172.5mm |
| Handlebar Width | 44cm |
| Stem Length | 90mm |
| Stem Angle | 7deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 188 cm to 194 cm |
| PBH | 88 cm to 91 cm |
Source:www.trekbikes.com