2021 Brodie Bicycles Romulus Base

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

Geometry

48
51
54
57
60
Stack
529.4mm
554mm
585.8mm
600mm
626mm
Reach
376.2mm
378.2mm
381.5mm
397.4mm
410.2mm
Stack to Reach Ratio
1.41:1
1.46:1
1.54:1
1.51:1
1.53:1
Seat Tube Length, Unknown
480mm
510mm
540mm
570mm
600mm
Top Tube Length, Effective/Horizontal Center
520mm
535mm
550mm
570mm
590mm
Top Tube Slope
7.5deg
7deg
7.2deg
5.4deg
4.9deg
Head Tube Angle
70deg
71.5deg
72deg
72deg
72.5deg
Seat Tube Angle
75deg
74deg
74deg
74deg
74deg
Head Tube Length
110mm
130mm
150mm
165mm
190mm
Bottom Bracket Drop
60mm
60mm
60mm
60mm
60mm
Bottom Bracket Height
279mm
279mm
279mm
279mm
279mm
Chainstay Length
425mm
425mm
425mm
425mm
425mm
Chainstay Length Horizontal
420.7mm
420.7mm
420.7mm
420.7mm
420.7mm
Front-Center
587.3mm
590.3mm
597.3mm
618.2mm
633.1mm
Front-Center Horizontal
584.3mm
587.3mm
594.3mm
615.3mm
630.3mm
Wheelbase
1005mm
1008mm
1015mm
1036mm
1051mm
Fork Offset/Rake
35mm
41.5mm
39.9mm
40.3mm
39.7mm
Trail
86.2mm
very high
69.7mm
high
68.2mm
high
67.8mm
high
65.3mm
high
Mechanical Trail
81mm
66.1mm
64.9mm
64.4mm
62.3mm
Wheel Flop
27.7mm
21mm
20.1mm
19.9mm
18.7mm
Standover Height
740mm
751mm
778mm
802mm
841mm
Tire to Pedal Spindle
73.3mm
175 mm cranks
76.3mm
175 mm cranks
83.3mm
175 mm cranks
104.2mm
175 mm cranks
119.1mm
175 mm cranks
Pedal Spindle to Ground Clearance
104mm
175 mm cranks
104mm
175 mm cranks
104mm
175 mm cranks
104mm
175 mm cranks
104mm
175 mm cranks

Base Build

48
51
54
57
60
Wheel Size
650B/27.5
584 mm BSD
650B/27.5
584 mm BSD
650B/27.5
584 mm BSD
650B/27.5
584 mm BSD
650B/27.5
584 mm BSD
Tire Width
47mm
47mm
47mm
47mm
47mm
Tire Width Max
50mm
50mm
50mm
50mm
50mm
Tire Outer Diameter
678mm
678mm
678mm
678mm
678mm
Bike Length with Tires
1683mm
1686mm
1693mm
1714mm
1729mm
Crank Length
175mm
175mm
175mm
175mm
175mm
Handlebar Width
400mm
400mm
420mm
440mm
440mm
Stem Length
70mm
90mm
100mm
110mm
120mm

Published Sizing Recommendations

Height
5 ft 0 in
to
5 ft 5 in
5 ft 4 in
to
5 ft 8 in
5 ft 7 in
to
5 ft 11 in
5 ft 10 in
to
6 ft 1 in
6 ft 0 in
to
6 ft 0 in

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
All-road/Gravel
Source:https://www.brodiebicycles.com/2020-romulus