1993 Bridgestone Cycle Co. RB-2 Base

	50cm	53cm	56cm	59cm	62cm
Stack	499.6mm	527.3mm	551.9mm	579.2mm	607.8mm
Reach	391mm	399mm	407mm	413mm	419mm
Stack to Reach Ratio	1.28:1	1.32:1	1.36:1	1.4:1	1.45:1
Seat Tube Length, C-T	500mm	530mm	560mm	590mm	620mm
Seat Tube Length, C-C	485mm	515mm	542mm	572mm	602mm
Top Tube Length, Effective/Horizontal Center	525mm	545mm	565mm	585mm	600mm
Top Tube Length, Actual C-C	525mm	545mm	565mm	585mm	600mm
Top Tube Slope	0deg	0deg	0deg	0deg	0deg
Head Tube Angle	72.5deg	73deg	73.5deg	74deg	74deg
Seat Tube Angle	74deg	73.5deg	73deg	72.5deg	72.5deg
Bottom Bracket Drop	75mm	75mm	70mm	70mm	70mm
Bottom Bracket Height	259mm	259mm	264mm	264mm	264mm
Chainstay Length	410mm	410mm	410mm	410mm	410mm
Chainstay Length Horizontal	403.1mm	403.1mm	404mm	404mm	404mm
Front-Center	576mm	579mm	591mm	595mm	609mm
Front-Center Horizontal	570.9mm	573.9mm	586mm	591mm	605mm
Wheelbase	974mm	977mm	990mm	995mm	1009mm
Fork Offset/Rake	50mm	45mm	45mm	40mm	40mm
Trail	52.9mm mid/neutral	55.1mm mid/neutral	52mm mid/neutral	54.2mm mid/neutral	54.2mm mid/neutral
Mechanical Trail	50.4mm	52.7mm	49.9mm	52.1mm	52.1mm
Wheel Flop	15.2mm	15.4mm	14.2mm	14.4mm	14.4mm
Standover Height	748mm	772mm	804mm	831mm	860mm
Tire to Pedal Spindle	72mm 170 mm cranks	75mm 170 mm cranks	82mm 175 mm cranks	86mm 175 mm cranks	100mm 175 mm cranks
Pedal Spindle to Ground Clearance	89mm 170 mm cranks	89mm 170 mm cranks	89mm 175 mm cranks	89mm 175 mm cranks	89mm 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/1993/pages/63.htm

Geometry