2021 J.Guillem Bicycles Atalaya 27.5

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

Geometry

52CM
54CM
56CM
58CM
Stack
528mm
550mm
592mm
602mm
Reach
381mm
386mm
394mm
411mm
Stack to Reach Ratio
1.39:1
1.42:1
1.5:1
1.46:1
Seat Tube Length, C-T
505mm
525mm
545mm
565mm
Seat Tube Length, C-C
460mm
480mm
500mm
520mm
Top Tube Length, Effective/Horizontal Center
535mm
550mm
570mm
590mm
Top Tube Slope
4.7deg
5deg
7.2deg
6deg
Head Tube Angle
70deg
71deg
72deg
72deg
Seat Tube Angle
74deg
73.5deg
73.5deg
73.5deg
Head Tube Length
120mm
140mm
165mm
185mm
Bottom Bracket Drop
70mm
70mm
70mm
70mm
Bottom Bracket Height
275.3mm
275.3mm
275.3mm
275.3mm
Chainstay Length
420mm
420mm
420mm
420mm
Chainstay Length Horizontal
414.1mm
414.1mm
414.1mm
414.1mm
Front-Center
603mm
603mm
615mm
635mm
Front-Center Horizontal
603.9mm
603.9mm
616.9mm
637.9mm
Wheelbase
1018mm
1018mm
1031mm
1052mm
Fork Offset/Rake
47mm
47mm
47mm
47mm
Trail
75.7mm
high
69.2mm
high
62.8mm
mid/​neutral
62.8mm
mid/​neutral
Mechanical Trail
71.1mm
65.4mm
59.7mm
59.7mm
Wheel Flop
24.3mm
21.3mm
18.5mm
18.5mm
Tire to Pedal Spindle
87.7mm
170 mm cranks
87.7mm
170 mm cranks
99.7mm
170 mm cranks
119.7mm
170 mm cranks
Pedal Spindle to Ground Clearance
105.3mm
170 mm cranks
105.3mm
170 mm cranks
105.3mm
170 mm cranks
105.3mm
170 mm cranks

27.5 Build

52CM
54CM
56CM
58CM
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
Tire Width
2.1in
2.1in
2.1in
2.1in
Tire Width Max
2.6in
2.6in
2.6in
2.6in
Tire Outer Diameter
690.7mm
690.7mm
690.7mm
690.7mm
Bike Length with Tires
1708.7mm
1708.7mm
1721.7mm
1742.7mm

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://jguillem.com/bike/atalaya-gravel