1990 Miyata Alumicross Base 63

Build

700C/29 in × 35 mm

Insights

Very upright stack and reach vs trend of cyclocross bikes
Design deviates from other sizes of Miyata Alumicross

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
635.9mm
Reach
375.6mm
Stack to Reach Ratio
1.69:1
Seat Tube Length, C-C
630mm
Top Tube Length, Effective/Horizontal Center
570mm
Top Tube Length, Actual C-C
570mm
Top Tube Slope
0deg
Head Tube Angle
73deg
Seat Tube Angle
73deg
Head Tube Length
208.9mm
Bottom Bracket Drop
50.1mm
Bottom Bracket Height
295.9mm
Chainstay Length
430mm
Chainstay Length Horizontal
427.1mm
Front-Center
605mm
Front-Center Horizontal
602.9mm
Wheelbase
1030mm
Fork Offset/Rake
45mm
Fork Length (Axle-To-Crown)
400mm
Trail
58.7mm
mid/​neutral
Mechanical Trail
56.2mm
Wheel Flop
16.4mm
Tire to Pedal Spindle Distance
With 170 mm cranks
89mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
125.9mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
35mm
Tire Outer Diameter
692mm
Bike Length with Tires
1722mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Aluminum
Fork Material
Steel
Brake Type
Rim
Source:https://www.ragandbone.ca/PDFs/Miyata%20Catalogue%20PDFs/Miyata%20Catalogue%2090.pdf