2020 Ritchey Design Road Logic Disc Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Carbon/Composite
Features
Disc brake
Somewhat aggressive stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category

Geometry

49 cm
51 cm
53 cm
55 cm
57 cm
59 cm
Stack
515mm
531mm
551mm
570mm
589mm
610mm
Reach
380mm
385mm
390mm
394mm
400mm
409mm
Stack to Reach Ratio
1.36:1
1.38:1
1.41:1
1.45:1
1.47:1
1.49:1
Seat Tube Length, C-T
465mm
485mm
505mm
525mm
545mm
565mm
Top Tube Length, Effective/Horizontal Center
518mm
532mm
548mm
563mm
575mm
590mm
Top Tube Slope
7.5deg
7.1deg
7.1deg
7deg
6.8deg
6.8deg
Head Tube Angle
72deg
72.5deg
73deg
73.5deg
73.5deg
74deg
Seat Tube Angle
75deg
74.5deg
74deg
73.5deg
73.5deg
73.5deg
Head Tube Length
105mm
120mm
140mm
160mm
180mm
200mm
Bottom Bracket Drop
72mm
72mm
72mm
70mm
70mm
70mm
Bottom Bracket Height
267mm
267mm
267mm
269mm
269mm
269mm
Chainstay Length
410mm
410mm
415mm
415mm
415mm
415mm
Chainstay Length Horizontal
403.6mm
403.6mm
408.7mm
409.1mm
409.1mm
409.1mm
Front-Center
576.9mm
581.8mm
588.7mm
594.1mm
606mm
615.9mm
Front-Center Horizontal
572.4mm
577.4mm
584.3mm
590mm
602mm
612mm
Wheelbase
976mm
981mm
993mm
999mm
1011mm
1021mm
Fork Offset/Rake
46mm
46mm
46mm
46mm
46mm
46mm
Fork Length (On-Axis)
369mm
369mm
369mm
369mm
369mm
369mm
Trail
61.8mm
mid/​neutral
58.7mm
mid/​neutral
55.5mm
mid/​neutral
52.4mm
mid/​neutral
52.4mm
mid/​neutral
49.4mm
mid/​neutral
Mechanical Trail
58.8mm
55.9mm
53.1mm
50.3mm
50.3mm
47.4mm
Wheel Flop
18.2mm
16.8mm
15.5mm
14.3mm
14.3mm
13.1mm
Standover Height
740mm
757mm
777mm
797mm
816mm
836mm
Tire to Pedal Spindle
67.9mm
170 mm cranks
72.8mm
170 mm cranks
79.7mm
170 mm cranks
85.1mm
170 mm cranks
97mm
170 mm cranks
106.9mm
170 mm cranks
Pedal Spindle to Ground Clearance
97mm
170 mm cranks
97mm
170 mm cranks
97mm
170 mm cranks
99mm
170 mm cranks
99mm
170 mm cranks
99mm
170 mm cranks

Base Build

49 cm
51 cm
53 cm
55 cm
57 cm
59 cm
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
28mm
28mm
28mm
28mm
28mm
28mm
Tire Width Max
30mm
30mm
30mm
30mm
30mm
30mm
Tire Outer Diameter
678mm
678mm
678mm
678mm
678mm
678mm
Bike Length with Tires
1654mm
1659mm
1671mm
1677mm
1689mm
1699mm

Stack and Reach vs. Category Trend

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.

Learn more about the Upright/Aggressive Scale
Category Trend
Performance Road
Source:https://us.ritcheylogic.com/media/itm/magb1/Productfiles/97350008004/ritchey-road-logic-disc-my20-geometry-0420_1.pdf