	XS	S	M	L	XL
Stack	508mm	525mm	544mm	564mm	587mm
Reach	360mm	370mm	380mm	390mm	400mm
Stack to Reach Ratio	1.41:1	1.42:1	1.43:1	1.45:1	1.47:1
Seat Tube Length, C-TTT	440mm	460mm	480mm	505mm	530mm
Top Tube Length, Effective/Horizontal Unknown	502mm	520mm	540mm	557mm	574mm
Top Tube Slope	7.7deg	7.2deg	7deg	6.4deg	6.1deg
Head Tube Angle	70.8deg	71.5deg	72deg	72.25deg	73.4deg
Seat Tube Angle	74.4deg	74deg	73.6deg	73.5deg	73.5deg
Head Tube Length	104mm	119mm	135mm	153mm	175mm
Bottom Bracket Drop	72mm	72mm	72mm	72mm	72mm
Bottom Bracket Height	267mm	267mm	267mm	267mm	267mm
Chainstay Length	408mm	410mm	410mm	410mm	410mm
Chainstay Length Horizontal	401.6mm	403.6mm	403.6mm	403.6mm	403.6mm
Front-Center	569mm	578mm	583mm	592mm	603mm
Front-Center Horizontal	564.7mm	574mm	578.5mm	587.7mm	598.4mm
Wheelbase	966.3mm	977.6mm	982.1mm	991.3mm	1002mm
Fork Offset/Rake	50mm	50mm	43mm	43mm	43mm
Trail	65.1mm high	60.7mm mid/neutral	64.9mm mid/neutral	63.4mm mid/neutral	56.2mm mid/neutral
Mechanical Trail	61.5mm	57.6mm	61.8mm	60.4mm	53.9mm
Wheel Flop	20.2mm	18.3mm	19.1mm	18.4mm	15.4mm
Tire to Pedal Spindle	60mm 170 mm cranks	69mm 170 mm cranks	74mm 170 mm cranks	83mm 170 mm cranks	94mm 170 mm cranks
Pedal Spindle to Ground Clearance	97mm 170 mm cranks	97mm 170 mm cranks	97mm 170 mm cranks	97mm 170 mm cranks	97mm 170 mm cranks

Published Sizing Recommendations

Height

155 cm

165 cm

175 cm

170 cm

180 cm

175 cm

185 cm

180 cm

190 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.

Category Trend

2024 XDS X-LAB RS8 Base