2019 Trek Bikes Checkpoint ALR 4 52 cm

Build

700C/29 in × 35 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
268mm
Chainstay Length
425mm
Chainstay Length Horizontal
417.8mm
Front-Center
592.4mm
Front-Center Horizontal
587.2mm
Wheelbase
1005mm
Fork Offset/Rake
49mm
Trail
63.5mm
mid/​neutral
Mechanical Trail
60.2mm
Wheel Flop
19mm
Standover Height
770mm
Tire to Pedal Spindle Distance
With 170 mm cranks
76.4mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
98mm

ALR 4 Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
35mm
Tire Outer Diameter
692mm
Bike Length with Tires
1697mm
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/ie/en_IE/bikes/road-bikes/gravel-bikes/checkpoint/checkpoint-alr/checkpoint-alr-4/p/22628/