2021 Co-Op Cycles ADV 4.2 Base

Category
Rigid MTB
Design
Flat Bar, Rigid, non-suspension corrected
Frame
Aluminum
Fork
Aluminum
Features
Disc brake
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Somewhat upright stack and reachvs category
Somewhat upright stack and reachvs category

Geometry

XS
S
M
L
XL
Stack
573.9mm
587.1mm
606mm
624.9mm
653.3mm
Reach
390.5mm
406mm
419.5mm
432.9mm
443.2mm
Stack to Reach Ratio
1.47:1
1.45:1
1.44:1
1.44:1
1.47:1
Seat Tube Length, C-T
330mm
370mm
420mm
470mm
520mm
Top Tube Length, Effective/Horizontal Center
560mm
580mm
600mm
620mm
640mm
Top Tube Slope
27.9deg
24.4deg
20.7deg
17.1deg
14.7deg
Head Tube Angle
70.3deg
71deg
71deg
71deg
71deg
Seat Tube Angle
73deg
73deg
73deg
73deg
73deg
Head Tube Length
120mm
Bottom Bracket Drop
55mm
55mm
55mm
55mm
55mm
Bottom Bracket Height
308.1mm
308.1mm
308.1mm
308.1mm
308.1mm
Chainstay Length
455mm
455mm
455mm
455mm
455mm
Chainstay Length Horizontal
451.7mm
451.7mm
451.7mm
451.7mm
451.7mm
Front-Center
635mm
644.4mm
664.3mm
684.3mm
704.2mm
Front-Center Horizontal
632.6mm
642mm
662mm
682mm
702mm
Wheelbase
1084.3mm
1093.7mm
1113.7mm
1133.7mm
1153.7mm
Fork Offset/Rake
55mm
50mm
50mm
50mm
50mm
Trail
71.6mm
high
72.2mm
high
72.2mm
high
72.2mm
high
72.2mm
high
Mechanical Trail
67.4mm
68.2mm
68.2mm
68.2mm
68.2mm
Wheel Flop
22.7mm
22.2mm
22.2mm
22.2mm
22.2mm
Standover Height
679.6mm
708.6mm
744.6mm
778.4mm
814.3mm
Tire to Pedal Spindle
101.9mm
170 mm cranks
111.3mm
170 mm cranks
131.2mm
170 mm cranks
151.1mm
170 mm cranks
171.1mm
170 mm cranks
Pedal Spindle to Ground Clearance
138.1mm
170 mm cranks
138.1mm
170 mm cranks
138.1mm
170 mm cranks
138.1mm
170 mm cranks
138.1mm
170 mm cranks

Base Build

XS
S
M
L
XL
Wheel Size
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
Tire Width
2.8in
2.8in
2.8in
2.8in
2.8in
Tire Outer Diameter
726.2mm
726.2mm
726.2mm
726.2mm
726.2mm
Bike Length with Tires
1810.5mm
1819.9mm
1839.9mm
1859.9mm
1879.9mm

Published Sizing Recommendations

Height
5 ft 0 in
to
5 ft 3 in
5 ft 3 in
to
5 ft 6 in
5 ft 6 in
to
5 ft 9 in
5 ft 9 in
to
6 ft 0 in
6 ft 0 in
to
6 ft 3 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
Rigid MTB
Source:https://www.rei.com/product/122461/co-op-cycles-adv-42-bike (BB Drop and HT Length from REI Support)