1986 Ritchey Design Commando Base 20

Build

26 in × 1.9 in

Insights

Very aggressive stack and reach vs trend of rigid mtb bikes
Design deviates from other sizes of Ritchey Design Commando

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
506.3mm
Reach
414.2mm
Stack to Reach Ratio
1.22:1
Seat Tube Length, C-C
495.3mm
Top Tube Length, Effective/Horizontal Center
571.5mm
Top Tube Length, Actual C-C
571.5mm
Top Tube Slope
0deg
Head Tube Angle
69deg
Seat Tube Angle
73deg
Bottom Bracket Drop
35.7mm
Bottom Bracket Height
292.1mm
Chainstay Length
442mm
Chainstay Length Horizontal
440.5mm
Front-Center
647.6mm
Front-Center Horizontal
646.6mm
Wheelbase
1087.1mm
Fork Offset/Rake
50.8mm
Trail
71.4mm
high
Mechanical Trail
66.7mm
Wheel Flop
23.9mm
Tire to Pedal Spindle Distance
With 170 mm cranks
149.8mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
122.1mm

Base Build

Wheel Size
26 inch (559mm BSD)
Tire Width
1.9in
Tire Outer Diameter
655.5mm
Bike Length with Tires
1742.6mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Flat Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Rim
Source:https://ritchey.vintagebicycledatabase.com/catalogs/ritchey/1986/