1984 Miyata All Terrain Series Ridge Runner

	17.5"	19.5"	21"	23"
Stack	440mm	487.4mm	499.3mm	547.2mm
Reach	384.2mm	385.8mm	401.6mm	404.6mm
Stack to Reach Ratio	1.15:1	1.26:1	1.24:1	1.35:1
Seat Tube Length, C-C	431.8mm	482.6mm	495.3mm	546.1mm
Top Tube Length, Effective/Horizontal Center	540mm	560mm	580mm	600mm
Top Tube Length, Actual C-C	540mm	560mm	580mm	600mm
Top Tube Slope	0deg	0deg	0deg	0deg
Head Tube Angle	68.5deg	68deg	68deg	68deg
Seat Tube Angle	70.66deg	70.5deg	70.5deg	70.5deg
Bottom Bracket Drop	30mm	30mm	30mm	30mm
Bottom Bracket Height	303.6mm	303.6mm	303.6mm	303.6mm
Chainstay Length	465mm	465mm	465mm	465mm
Chainstay Length Horizontal	464mm	464mm	464mm	464mm
Front-Center	633mm	625mm	647mm	669mm
Front-Center Horizontal	632mm	624mm	647mm	668mm
Wheelbase	1096mm	1088mm	1111mm	1132mm
Fork Offset/Rake	55mm	55mm	55mm	55mm
Trail	72.3mm high	75.5mm high	75.5mm high	75.5mm high
Mechanical Trail	67.3mm	70mm	70mm	70mm
Wheel Flop	24.7mm	26.2mm	26.2mm	26.2mm
Tire to Pedal Spindle	129.4mm 170 mm cranks	121.4mm 170 mm cranks	143.4mm 170 mm cranks	165.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	133.6mm 170 mm cranks	133.6mm 170 mm cranks	133.6mm 170 mm cranks	133.6mm 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.ragandbone.ca/Miyata/miyata_selector.html

Geometry