2017 Soma Fabrications Stanyan Base

	52	54	56	58	60
Stack	541mm	542mm	548mm	565mm	584mm
Reach	382mm	389mm	398mm	403mm	412mm
Stack to Reach Ratio	1.42:1	1.39:1	1.38:1	1.4:1	1.42:1
Seat Tube Length, C-T	520mm	540mm	560mm	580mm	600mm
Top Tube Length, Effective/Horizontal Center	535mm	550mm	565mm	575mm	590mm
Top Tube Slope	4.6deg	2.6deg	1.3deg	1deg	1deg
Head Tube Angle	73deg	73deg	73deg	73.5deg	73.5deg
Seat Tube Angle	73.5deg	73.5deg	73deg	73deg	73deg
Head Tube Length	110mm	115mm	124mm	137mm	157mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm	70mm
Bottom Bracket Height	273mm	273mm	273mm	273mm	273mm
Chainstay Length	420mm	420mm	425mm	425mm	430mm
Chainstay Length Max	420mm	420mm	425mm	425mm	430mm
Chainstay Length Horizontal	414.1mm	414.1mm	419.2mm	419.2mm	424.3mm
Chainstay Length Horizontal Max	414.1mm	414.1mm	419.2mm	419.2mm	424.3mm
Front-Center	574.2mm	584.1mm	593.9mm	597.9mm	613.7mm
Front-Center Horizontal	569.9mm	579.9mm	589.8mm	593.8mm	609.7mm
Wheelbase	984mm	994mm	1009mm	1013mm	1034mm
Wheelbase Max	984mm	994mm	1009mm	1013mm	1034mm
Fork Offset/Rake	45mm	45mm	43mm	43mm	43mm
Fork Length (Axle-To-Crown)	379mm	379mm	379mm	379mm	379mm
Trail	57.8mm mid/neutral	57.8mm mid/neutral	59.9mm mid/neutral	56.8mm mid/neutral	56.8mm mid/neutral
Mechanical Trail	55.3mm	55.3mm	57.3mm	54.4mm	54.4mm
Wheel Flop	16.2mm	16.2mm	16.8mm	15.5mm	15.5mm
Standover Height	772mm	792mm	803mm	820mm	838mm
Tire to Pedal Spindle	61.2mm 170 mm cranks	71.1mm 170 mm cranks	80.9mm 170 mm cranks	84.9mm 170 mm cranks	100.7mm 170 mm cranks
Pedal Spindle to Ground Clearance	103mm 170 mm cranks	103mm 170 mm cranks	103mm 170 mm cranks	103mm 170 mm cranks	103mm 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.

Category Trend

Source:https://www.somafab.com/archives/product/stanyan-frameset

Geometry