2021 Trek Bikes Checkpoint ALR 52 cm
Build
700C/29 in × 40 mm
Insights
Somewhat aggressive 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 | 549mm |
| Reach | 379mm |
| Stack to Reach Ratio | 1.45:1 |
| Seat Tube Length, C-T | 520mm |
| Top Tube Length, Effective/Horizontal HT Top | 536mm |
| Top Tube Slope | 5.4deg |
| Head Tube Angle | 71.6deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 107mm |
| Bottom Bracket Drop | 78mm |
| Bottom Bracket Height | 273mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 417.8mm |
| Front-Center | 592.4mm |
| Front-Center Horizontal | 587.2mm |
| Wheelbase | 1005mm |
| Fork Offset/Rake | 49mm |
| Trail | 65.1mm high |
| Mechanical Trail | 61.8mm |
| Wheel Flop | 19.5mm |
| Standover Height | 770mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 71.4mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 103mm |
ALR Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 40mm |
| Tire Outer Diameter | 702mm |
| Bike Length with Tires | 1707mm |
| Crank Length | 170mm |
| Handlebar Width | 40cm |
| 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 | 162 cm to 169 cm |
| PBH | 76 cm to 79 cm |
Source:https://www.trekbikes.com/de/de_DE/bikes/rennräder/gravel-bikes/checkpoint/checkpoint-alr/checkpoint-alr-f/s/p/32692/?colorCode=tealdark