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Xtrada

2020 Polygon Bikes Xtrada 7

Category
Hardtail Cross-country MTB
Design
Flat Bar, Hardtail (Front suspension)
Frame
Aluminum
Suspension
100mm fork travel, 20% sag
Features
Disc brake
SM 27.5"
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Collection
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MD 27.5"
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I've Ridden
MD 29"
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LG 27.5"
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LG 29"
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XL 29"
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Average stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat upright stack and reachvs category
Somewhat aggressive stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category

Geometry

SM 27.5"
MD 27.5"
MD 29"
LG 27.5"
LG 29"
XL 29"
Stack
594mm
599mm
629mm
603mm
633mm
638mm
Reach
410mm
430mm
430mm
450mm
450mm
470mm
Stack to Reach Ratio
1.45:1
1.39:1
1.46:1
1.34:1
1.41:1
1.36:1
Seat Tube Length, Unknown
385mm
425mm
425mm
460mm
460mm
500mm
Top Tube Length, Effective/Horizontal Unknown
569mm
590mm
598mm
612mm
619mm
640mm
Top Tube Slope
23.6deg
19.2deg
22deg
15.6deg
18.3deg
14.5deg
Head Tube Angle
67deg
67deg
67deg
67deg
67deg
67deg
Seat Tube Angle
75deg
75deg
75deg
75deg
75deg
75deg
Head Tube Length
95mm
100mm
95mm
105mm
100mm
105mm
Bottom Bracket Drop
45mm
45mm
65mm
45mm
65mm
65mm
Bottom Bracket Height
304.2mm
304.2mm
303.2mm
304.2mm
303.2mm
303.2mm
Chainstay Length
425mm
425mm
435mm
425mm
435mm
435mm
Chainstay Length Horizontal
422.6mm
422.6mm
430.1mm
422.6mm
430.1mm
430.1mm
Front-Center
685mm
707mm
720mm
729mm
742mm
764mm
Front-Center Horizontal
683.4mm
705.4mm
716.9mm
727.4mm
738.9mm
760.9mm
Wheelbase
1106mm
1128mm
1147mm
1150mm
1169mm
1191mm
Fork Offset/Rake
42mm
42mm
46mm
42mm
46mm
46mm
Fork Length, Unknown
496mm
496mm
518mm
496mm
518mm
518mm
Trail
102.6mm
very high
102.6mm
very high
106.3mm
very high
102.6mm
very high
106.3mm
very high
106.3mm
very high
Mechanical Trail
94.4mm
94.4mm
97.9mm
94.4mm
97.9mm
97.9mm
Wheel Flop
36.9mm
36.9mm
38.2mm
36.9mm
38.2mm
38.2mm
Tire to Pedal Spindle
165.9mm
170 mm cranks
187.9mm
170 mm cranks
181.9mm
170 mm cranks
209.9mm
170 mm cranks
203.9mm
170 mm cranks
225.9mm
170 mm cranks
Pedal Spindle to Ground Clearance
134.2mm
170 mm cranks
134.2mm
170 mm cranks
133.2mm
170 mm cranks
134.2mm
170 mm cranks
133.2mm
170 mm cranks
133.2mm
170 mm cranks

7 Build

SM 27.5"
MD 27.5"
MD 29"
LG 27.5"
LG 29"
XL 29"
Wheel Size
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
700C/29 in
622 mm BSD
650B/27.5 in
584 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
2.25in
2.25in
2.25in
2.25in
2.25in
2.25in
Tire Outer Diameter
698.3mm
698.3mm
736.3mm
698.3mm
736.3mm
736.3mm
Bike Length with Tires
1804.3mm
1826.3mm
1883.3mm
1848.3mm
1905.3mm
1927.3mm
Handlebar Width
760mm
760mm
760mm
760mm
760mm
760mm
Stem Length
40mm
40mm
40mm
40mm
40mm
40mm

Published Sizing Recommendations

Height
152 cm
to
165 cm
162 cm
to
175 cm
162 cm
to
175 cm
172 cm
to
185 cm
172 cm
to
185 cm
182 cm
to
195 cm

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
Hardtail Cross-country MTB
Source:https://99spokes.com/en/bikes/polygon/2020/xtrada-7
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