1992 Ritchey Design Road Logic Base 56

Build

700C/29 in × 20 mm

Insights

Very aggressive stack and reach vs trend of performance road bikes
Design deviates from other sizes of Ritchey Design Road Logic

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
537.6mm
Reach
400.8mm
Stack to Reach Ratio
1.34:1
Seat Tube Length, Unknown
560mm
Top Tube Length, Effective/Horizontal Center
560mm
Top Tube Length, Actual C-C
560mm
Top Tube Slope
0deg
Head Tube Angle
73.5deg
Seat Tube Angle
73.5deg
Bottom Bracket Drop
61mm
Bottom Bracket Height
270mm
Chainstay Length
415mm
Chainstay Length Horizontal
410.5mm
Front-Center
572.8mm
Front-Center Horizontal
569.5mm
Wheelbase
980mm
Fork Offset/Rake
44mm
Trail
52.2mm
mid/​neutral
Mechanical Trail
50mm
Wheel Flop
14.2mm
Tire to Pedal Spindle Distance
With 170 mm cranks
71.8mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
100mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
20mm
Tire Outer Diameter
662mm
Bike Length with Tires
1642mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Rim
Source:https://ritchey.vintagebicycledatabase.com/catalogs/ritchey/1992/1992RitcheyBicycles.pdf