2019 Trek Bikes Checkpoint Base

	49 cm	52 cm	54 cm	56 cm	58 cm	61 cm
Stack	532mm	549mm	567mm	586mm	609mm	638mm
Reach	373mm	379mm	383mm	387mm	391mm	397mm
Stack to Reach Ratio	1.43:1	1.45:1	1.48:1	1.51:1	1.56:1	1.61:1
Seat Tube Length, C-T	490mm	520mm	540mm	560mm	580mm	610mm
Top Tube Length, Effective/Horizontal HT Top	515mm	536mm	551mm	566mm	577mm	592mm
Top Tube Slope	6.7deg	5.4deg	5.2deg	5.2deg	5.5deg	5.4deg
Head Tube Angle	71.4deg	71.6deg	71.8deg	72.2deg	72.3deg	72.6deg
Seat Tube Angle	75deg	74deg	73.5deg	73deg	73deg	73deg
Head Tube Length	90mm	107mm	126mm	145mm	171mm	200mm
Bottom Bracket Drop	78mm	78mm	76mm	76mm	74mm	74mm
Bottom Bracket Height	268mm	268mm	270mm	270mm	272mm	272mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	417.8mm	417.8mm	418.2mm	418.2mm	418.5mm	418.5mm
Front-Center	582.5mm	592.4mm	600.7mm	606.6mm	617.9mm	629.9mm
Front-Center Horizontal	577.2mm	587.2mm	595.9mm	601.9mm	613.5mm	625.5mm
Wheelbase	995mm	1005mm	1014mm	1020mm	1032mm	1044mm
Fork Offset/Rake	49mm	49mm	49mm	49mm	49mm	49mm
Trail	64.7mm mid/neutral	63.5mm mid/neutral	62.2mm mid/neutral	59.6mm mid/neutral	59mm mid/neutral	57.1mm mid/neutral
Mechanical Trail	61.4mm	60.2mm	59.1mm	56.8mm	56.2mm	54.5mm
Wheel Flop	19.6mm	19mm	18.5mm	17.4mm	17.1mm	16.3mm
Standover Height	723mm	749mm	775mm	795mm	817mm	846mm
Tire to Pedal Spindle	66.5mm 170 mm cranks	76.4mm 170 mm cranks	84.7mm 170 mm cranks	90.6mm 170 mm cranks	101.9mm 170 mm cranks	113.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	98mm 170 mm cranks	98mm 170 mm cranks	100mm 170 mm cranks	100mm 170 mm cranks	102mm 170 mm cranks	102mm 170 mm cranks

	49 cm	52 cm	54 cm	56 cm	58 cm	61 cm
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	35mm	35mm	35mm	35mm	35mm	35mm
Tire Outer Diameter	692mm	692mm	692mm	692mm	692mm	692mm
Bike Length with Tires	1687mm	1697mm	1706mm	1712mm	1724mm	1736mm

Published Sizing Recommendations

Height	158 cm to 163 cm	162 cm to 169 cm	167 cm to 174 cm	173 cm to 180 cm	179 cm to 186 cm	184 cm to 191 cm
PBH	74 cm to 77 cm	76 cm to 79 cm	78 cm to 82 cm	81 cm to 85 cm	84 cm to 87 cm	86 cm to 90 cm

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

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Source:https://www.trekbikes.com/us/en_US/bikes/road-bikes/checkpoint/f/F224/