	S	M	L	XL
Stack	629mm	638mm	647mm	656mm
Reach	440mm	465mm	490mm	510mm
Stack to Reach Ratio	1.43:1	1.37:1	1.32:1	1.29:1
Seat Tube Length, C-T	360mm	410mm	460mm	510mm
Top Tube Length, Effective/Horizontal HT Top	609mm	637mm	664mm	687mm
Top Tube Slope	27.8deg	23deg	18.4deg	14.3deg
Head Tube Angle	64deg	64deg	64deg	64deg
Seat Tube Angle	75deg	75deg	75deg	75deg
Head Tube Length	95mm	105mm	115mm	125mm
Bottom Bracket Drop	20mm	20mm	20mm	20mm
Bottom Bracket Height	330.4mm	330.4mm	330.4mm	330.4mm
Chainstay Length	440mm	440mm	440mm	440mm
Chainstay Length Horizontal	439.6mm	439.6mm	439.6mm	439.6mm
Front-Center	761.7mm	790.7mm	820.7mm	844.7mm
Front-Center Horizontal	761.5mm	790.5mm	820.5mm	844.5mm
Wheelbase	1201mm	1230mm	1260mm	1284mm
Fork Offset/Rake	44mm	44mm	44mm	44mm
Fork Length (Axle-To-Crown)	551mm	551mm	551mm	551mm
Trail	122mm very high	122mm very high	122mm very high	122mm very high
Mechanical Trail	109.6mm	109.6mm	109.6mm	109.6mm
Wheel Flop	48.1mm	48.1mm	48.1mm	48.1mm
Tire to Pedal Spindle	241.3mm 170 mm cranks	270.3mm 170 mm cranks	300.3mm 170 mm cranks	324.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	160.4mm 170 mm cranks	160.4mm 170 mm cranks	160.4mm 170 mm cranks	160.4mm 170 mm cranks

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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2026 Saracen Mantra LSL Race

Geometry