2026 Factor Bikes One Base

	47	52	54	56	58
Stack	503mm	523mm	542mm	565mm	587mm
Reach	390mm	396mm	404mm	412mm	421mm
Stack to Reach Ratio	1.29:1	1.32:1	1.34:1	1.37:1	1.39:1
Seat Tube Length, C-T	470mm	520mm	540mm	560mm	580mm
Top Tube Slope	5.3deg	2deg	1.9deg	2.3deg	2.6deg
Head Tube Angle	72.5deg	73.3deg	73.3deg	73.3deg	73.3deg
Seat Tube Angle	76.5deg	76deg	76deg	76deg	75.5deg
Bottom Bracket Drop	77mm	77mm	75mm	75mm	75mm
Bottom Bracket Height	264mm	264mm	266mm	266mm	266mm
Chainstay Length	405mm	405mm	405mm	405mm	408mm
Chainstay Length Horizontal	397.6mm	397.6mm	398mm	398mm	401.1mm
Front-Center	579.5mm	579.5mm	594.8mm	608.6mm	623.5mm
Front-Center Horizontal	574.4mm	574.4mm	590mm	604mm	619mm
Wheelbase	972mm	972mm	988mm	1002mm	1020mm
Fork Offset/Rake	48mm	43mm	43mm	43mm	43mm
Trail	57.2mm mid/neutral	57.4mm mid/neutral	57.4mm mid/neutral	57.4mm mid/neutral	57.4mm mid/neutral
Mechanical Trail	54.5mm	55mm	55mm	55mm	55mm
Wheel Flop	16.4mm	15.8mm	15.8mm	15.8mm	15.8mm
Tire to Pedal Spindle	68.5mm 170 mm cranks	68.5mm 170 mm cranks	83.8mm 170 mm cranks	97.6mm 170 mm cranks	112.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	94mm 170 mm cranks	94mm 170 mm cranks	96mm 170 mm cranks	96mm 170 mm cranks	96mm 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://factorbikes.com/bike-builder/one-shimano-ultegra

Geometry