2017 J.Guillem Bicycles Mayor Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Titanium
Fork
Carbon/Composite
Features
Rim brake
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
Average stack and reachvs category

Geometry

49CM
52CM
54CM
56CM
58CM
60CM
Stack
532mm
544mm
558mm
574mm
591mm
609.7mm
Reach
381mm
379mm
384mm
392mm
400mm
410mm
Stack to Reach Ratio
1.4:1
1.44:1
1.45:1
1.46:1
1.48:1
1.49:1
Seat Tube Length, C-T
475mm
505mm
525mm
545mm
565mm
585mm
Seat Tube Length, C-C
440mm
470mm
490mm
510mm
530mm
550mm
Top Tube Length, Effective/Horizontal Center
520mm
535mm
550mm
565mm
580mm
600mm
Top Tube Length, Actual C-C
506mm
521mm
536mm
551mm
566mm
586mm
Top Tube Slope
8.7deg
6.8deg
6.2deg
5.8deg
5.5deg
5.1deg
Head Tube Angle
72.25deg
73deg
73deg
73.5deg
73.5deg
73.5deg
Seat Tube Angle
75.5deg
74deg
73.5deg
73.25deg
73deg
72.5deg
Head Tube Length
130mm
140mm
155mm
170mm
190mm
205mm
Bottom Bracket Drop
70mm
70mm
70mm
70mm
68mm
68mm
Bottom Bracket Height
266mm
266mm
266mm
266mm
268mm
268mm
Chainstay Length
405mm
405mm
405mm
405mm
407mm
410mm
Chainstay Length Horizontal
398.9mm
398.9mm
398.9mm
398.9mm
401.3mm
404.3mm
Front-Center
578mm
573mm
583mm
591mm
603mm
618mm
Front-Center Horizontal
574.1mm
568.1mm
579.1mm
587.1mm
598.7mm
613.7mm
Wheelbase
973mm
967mm
978mm
986mm
1000mm
1018mm
Fork Offset/Rake
43.1mm
42.3mm
43.9mm
43.9mm
42mm
Trail
62.4mm
mid/​neutral
58.6mm
mid/​neutral
56.8mm
mid/​neutral
53.7mm
mid/​neutral
55.7mm
mid/​neutral
Mechanical Trail
59.4mm
56mm
54.3mm
51.5mm
53.4mm
Wheel Flop
18.1mm
16.4mm
15.9mm
14.6mm
15.2mm
Standover Height
747mm
766mm
782mm
799mm
819mm
835mm
Tire to Pedal Spindle
72mm
170 mm cranks
67mm
170 mm cranks
77mm
170 mm cranks
85mm
170 mm cranks
97mm
170 mm cranks
112mm
170 mm cranks
Pedal Spindle to Ground Clearance
96mm
170 mm cranks
96mm
170 mm cranks
96mm
170 mm cranks
96mm
170 mm cranks
98mm
170 mm cranks
98mm
170 mm cranks

Base Build

49CM
52CM
54CM
56CM
58CM
60CM
Wheel Size
700C/29"
622 mm BSD
700C/29"
622 mm BSD
700C/29"
622 mm BSD
700C/29"
622 mm BSD
700C/29"
622 mm BSD
700C/29"
622 mm BSD
Tire Width
25mm
25mm
25mm
25mm
25mm
25mm
Tire Outer Diameter
672mm
672mm
672mm
672mm
672mm
672mm
Bike Length with Tires
1645mm
1639mm
1650mm
1658mm
1672mm
1690mm

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://www.planetx.co.uk/news/products/q/date/2017/08/24/j-guillem-major-geometry