1993 Bridgestone Cycle Co. RB-1 RB-1/8

	50cm	53cm	54.5cm	56cm	57.5cm	59cm	62cm
Stack	499.6mm	527.3mm	541.7mm	551.9mm	566.2mm	579.2mm	607.8mm
Reach	380.8mm	388.5mm	389.2mm	396.6mm	402.2mm	403.4mm	409.3mm
Stack to Reach Ratio	1.31:1	1.36:1	1.39:1	1.39:1	1.41:1	1.44:1	1.48:1
Seat Tube Length, C-T	500mm	530mm	545mm	560mm	575mm	590mm	620mm
Seat Tube Length, C-C	485mm	515mm	530mm	542mm	557mm	572mm	602mm
Top Tube Length, Effective/Horizontal Center	525mm	545mm	550mm	565mm	575mm	585mm	600mm
Top Tube Length, Actual C-C	525mm	545mm	550mm	565mm	575mm	585mm	600mm
Top Tube Slope	0deg	0deg	0deg	0deg	0deg	0deg	0deg
Head Tube Angle	72.5deg	73deg	73deg	73.5deg	73.5deg	74deg	74deg
Seat Tube Angle	74deg	73.5deg	73.5deg	73deg	73deg	72.5deg	72.5deg
Bottom Bracket Drop	75mm	75mm	70mm	70mm	70mm	70mm	70mm
Bottom Bracket Height	261mm	261mm	266mm	266mm	266mm	266mm	266mm
Chainstay Length	410mm	410mm	410mm	410mm	410mm	410mm	410mm
Chainstay Length Horizontal	403.1mm	403.1mm	404mm	404mm	404mm	404mm	404mm
Front-Center	576mm	579mm	585mm	591mm	600mm	595mm	609mm
Front-Center Horizontal	570.9mm	573.9mm	581mm	586mm	596mm	591mm	605mm
Wheelbase	974mm	977mm	985mm	990mm	1000mm	995mm	1009mm
Fork Offset/Rake	50mm	45mm	45mm	45mm	45mm	40mm	40mm
Trail	53.5mm mid/neutral	55.7mm mid/neutral	55.7mm mid/neutral	52.6mm mid/neutral	52.6mm mid/neutral	54.7mm mid/neutral	54.7mm mid/neutral
Mechanical Trail	51mm	53.2mm	53.2mm	50.4mm	50.4mm	52.6mm	52.6mm
Wheel Flop	15.4mm	15.6mm	15.6mm	14.3mm	14.3mm	14.5mm	14.5mm
Standover Height	744mm	768mm	787mm	799mm	813mm	826mm	855mm
Tire to Pedal Spindle	70mm 170 mm cranks	73mm 170 mm cranks	76.5mm 172.5 mm cranks	82.5mm 172.5 mm cranks	89mm 175 mm cranks	84mm 175 mm cranks	98mm 175 mm cranks
Pedal Spindle to Ground Clearance	91mm 170 mm cranks	91mm 170 mm cranks	93.5mm 172.5 mm cranks	93.5mm 172.5 mm cranks	91mm 175 mm cranks	91mm 175 mm cranks	91mm 175 mm cranks

	50cm	53cm	54.5cm	56cm	57.5cm	59cm	62cm
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	25mm	25mm	25mm	25mm	25mm	25mm	25mm
Tire Outer Diameter	672mm	672mm	672mm	672mm	672mm	672mm	672mm
Bike Length with Tires	1646mm	1649mm	1657mm	1662mm	1672mm	1667mm	1681mm
Crank Length	170mm	170mm	172.5mm	172.5mm	175mm	175mm	175mm
Stem Length	90mm	110mm	120mm	120mm	130mm	130mm	130mm

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.

Learn more about the Upright/Aggressive Scale

Category Trend

Performance Road

Source:https://www.sheldonbrown.com/bridgestone/1993/pages/63.htm

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1993 Bridgestone Cycle Co. RB-1 RB-1/8

Geometry

RB-1/8 Build

Stack and Reach vs. Category Trend