	XS	S	M	ML	L	XL
Stack	526.8mm	540.8mm	557.8mm	576.6mm	595.7mm	614.8mm
Reach	368.9mm	374.9mm	379.8mm	383.7mm	392.9mm	402mm
Stack to Reach Ratio	1.43:1	1.44:1	1.47:1	1.5:1	1.52:1	1.53:1
Seat Tube Length, Unknown	410mm	445mm	480mm	515mm	535mm	565mm
Top Tube Length, Actual C-C	515mm	530mm	545mm	560mm	575mm	590mm
Top Tube Slope	15.4deg	12.8deg	10.7deg	9deg	8.7deg	7.5deg
Head Tube Angle	70.5deg	71.8deg	72.5deg	72.5deg	72.5deg	72.5deg
Seat Tube Angle	74.5deg	74deg	73.5deg	73deg	73deg	73deg
Head Tube Length	125mm	135mm	150mm	175mm	195mm	215mm
Bottom Bracket Drop	75mm	75mm	75mm	70mm	70mm	70mm
Bottom Bracket Height	264mm	264mm	264mm	269mm	269mm	269mm
Chainstay Length	420mm	420mm	420mm	420mm	420mm	420mm
Chainstay Length Horizontal	413.3mm	413.3mm	413.3mm	414.1mm	414.1mm	414.1mm
Front-Center	586.8mm	586mm	589.2mm	600mm	615.1mm	630.2mm
Front-Center Horizontal	582mm	581.2mm	584.5mm	595.9mm	611.1mm	626.3mm
Wheelbase	995.2mm	994.4mm	997.7mm	1010mm	1025.2mm	1040.4mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	50mm	50mm
Trail	67mm high	58.8mm mid/neutral	54.5mm mid/neutral	54.5mm mid/neutral	54.5mm mid/neutral	54.5mm mid/neutral
Mechanical Trail	63.2mm	55.9mm	51.9mm	51.9mm	51.9mm	51.9mm
Wheel Flop	21.1mm	17.5mm	15.6mm	15.6mm	15.6mm	15.6mm
Standover Height	689.3mm	716.3mm	744mm	777.5mm	796mm	822mm
Tire to Pedal Spindle	77.8mm 170 mm cranks	77mm 170 mm cranks	77.7mm 172.5 mm cranks	86mm 175 mm cranks	101.1mm 175 mm cranks	116.2mm 175 mm cranks
Pedal Spindle to Ground Clearance	94mm 170 mm cranks	94mm 170 mm cranks	91.5mm 172.5 mm cranks	94mm 175 mm cranks	94mm 175 mm cranks	94mm 175 mm cranks

	XS	S	M	ML	L	XL
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	28mm	28mm	28mm	28mm	28mm	28mm
Tire Width Max	33mm	33mm	33mm	33mm	33mm	33mm
Tire Outer Diameter	678mm	678mm	678mm	678mm	678mm	678mm
Bike Length with Tires	1673.2mm	1672.4mm	1675.7mm	1688mm	1703.2mm	1718.4mm
Crank Length	170mm	170mm	172.5mm	175mm	175mm	175mm
Handlebar Width	400mm	400mm	420mm	420mm	440mm	420mm
Stem Length	80mm	90mm	100mm	100mm	110mm	110mm

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.

Category Trend

2027 Giant Bicycles Contend SL 1

Geometry