1985 Panasonic All-Terrain Bike Base

	18"	20"	22"	24"
Stack	459.7mm	509.7mm	557.6mm	605.3mm
Reach	384.3mm	384.8mm	379.8mm	375.4mm
Stack to Reach Ratio	1.2:1	1.32:1	1.47:1	1.61:1
Seat Tube Length, C-C	457.2mm	508mm	558.8mm	609.6mm
Top Tube Length, Effective/Horizontal Center	560mm	572mm	584mm	597mm
Top Tube Length, Actual C-C	560mm	572mm	584mm	597mm
Top Tube Slope	0deg	0deg	0deg	0deg
Head Tube Angle	66.3deg	67.3deg	68deg	68deg
Seat Tube Angle	69.3deg	70deg	70deg	70deg
Bottom Bracket Drop	23.3mm	32.9mm	33mm	33.2mm
Bottom Bracket Height	310.2mm	300.6mm	300.4mm	300.3mm
Chainstay Length	470mm	470mm	470mm	470mm
Chainstay Length Horizontal	469.4mm	468.9mm	468.8mm	468.8mm
Front-Center	639mm	642mm	652mm	666mm
Front-Center Horizontal	638.6mm	641.2mm	651.2mm	665.2mm
Wheelbase	1108mm	1110mm	1120mm	1134mm
Trail	— —	— —	— —	— —
Mechanical Trail	—	—	—	—
Wheel Flop	—	—	—	—
Tire to Pedal Spindle	135.5mm 170 mm cranks	138.5mm 170 mm cranks	148.5mm 170 mm cranks	162.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	140.2mm 170 mm cranks	130.6mm 170 mm cranks	130.4mm 170 mm cranks	130.3mm 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://i0.wp.com/www.panasonicbikemuseum.info/wp-content/uploads/1985cat16.jpg?fit=1201%2C1600&ssl=1

Geometry