1992 Bridgestone Cycle Co. XO-1 Base

	42cm	48cm	52cm	55cm	59cm
Stack	439mm	494.7mm	532.1mm	559.4mm	597.7mm
Reach	385.5mm	381.9mm	392.1mm	394mm	397.3mm
Stack to Reach Ratio	1.14:1	1.3:1	1.36:1	1.42:1	1.5:1
Seat Tube Length, C-C	420mm	480mm	520mm	550mm	590mm
Top Tube Length, Effective/Horizontal Center	505mm	525mm	550mm	565mm	580mm
Top Tube Length, Actual C-C	505mm	525mm	550mm	565mm	580mm
Top Tube Slope	0deg	0deg	0deg	0deg	0deg
Head Tube Angle	72deg	72deg	73deg	73deg	73deg
Seat Tube Angle	75deg	74deg	73.5deg	73deg	73deg
Bottom Bracket Drop	45mm	45mm	45mm	45mm	45mm
Bottom Bracket Height	271mm	271mm	271mm	271mm	266.3mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	422.6mm	422.6mm	422.6mm	422.6mm	422.6mm
Front-Center	573mm	577mm	585mm	595mm	610mm
Front-Center Horizontal	570.4mm	574.4mm	582.4mm	593.4mm	608.4mm
Wheelbase	993mm	997mm	1005mm	1016mm	1031mm
Fork Offset/Rake	45mm	45mm	40mm	40mm	40mm
Trail	55.4mm mid/neutral	55.4mm mid/neutral	54.8mm mid/neutral	54.8mm mid/neutral	53.3mm mid/neutral
Mechanical Trail	52.7mm	52.7mm	52.4mm	52.4mm	51mm
Wheel Flop	16.3mm	16.3mm	15.3mm	15.3mm	14.9mm
Standover Height	684mm	732mm	769mm	797mm	835mm
Tire to Pedal Spindle	87mm 170 mm cranks	91mm 170 mm cranks	99mm 170 mm cranks	104mm 175 mm cranks	123.8mm 175 mm cranks
Pedal Spindle to Ground Clearance	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	96mm 175 mm cranks	91.3mm 175 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.sheldonbrown.com/bridgestone/1992/1992.pdf

Geometry