2021 Nukeproof Mega 275 Base

Design
Flat Bar, Full suspension
Frame
Aluminum
Suspension
160mm fork travel, 170mm rear travel, 30% sag
Features
Disc brake
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category

Geometry

SMALL
MEDIUM
LARGE
X-LARGE
XX-LARGE
Stack
591.5mm
600.5mm
618.4mm
627.4mm
636.4mm
Reach
435mm
460mm
480mm
500mm
520mm
Stack to Reach Ratio
1.36:1
1.31:1
1.29:1
1.25:1
1.22:1
Seat Tube Length, C-T
380mm
410mm
440mm
470mm
500mm
Top Tube Length, Effective/Horizontal Center
566.1mm
593.1mm
611.5mm
633.4mm
655.3mm
Head Tube Angle
64deg
64deg
64deg
64deg
64deg
Effective Seat Tube Angle, ETT HT Top
77.5deg
77.5deg
78deg
78deg
78deg
Seat Tube Exit Angle
71deg
71deg
71.5deg
71.5deg
71.5deg
Head Tube Length
100mm
110mm
130mm
140mm
150mm
Bottom Bracket Drop
10mm
10mm
10mm
10mm
10mm
Bottom Bracket Height
343mm
343mm
343mm
343mm
343mm
Chainstay Length
435mm
435mm
435mm
435mm
435mm
Chainstay Length Horizontal
434.9mm
434.9mm
434.9mm
434.9mm
434.9mm
Front-Center
759.8mm
789.2mm
818mm
842.4mm
866.8mm
Front-Center Horizontal
759.8mm
789.2mm
817.9mm
842.3mm
866.7mm
Wheelbase
1194.7mm
1224mm
1252.8mm
1277.2mm
1301.6mm
Fork Offset/Rake
37mm
37mm
37mm
37mm
37mm
Fork Length (Axle-To-Crown)
562mm
562mm
562mm
562mm
562mm
Trail
131mm
very high
131mm
very high
131mm
very high
131mm
very high
131mm
very high
Mechanical Trail
117.7mm
117.7mm
117.7mm
117.7mm
117.7mm
Wheel Flop
51.6mm
51.6mm
51.6mm
51.6mm
51.6mm
Standover Height
725.5mm
724.6mm
726.2mm
728.8mm
733.5mm
Tire to Pedal Spindle
236.9mm
170 mm cranks
266.3mm
170 mm cranks
295mm
170 mm cranks
319.4mm
170 mm cranks
343.8mm
170 mm cranks
Pedal Spindle to Ground Clearance
173mm
170 mm cranks
173mm
170 mm cranks
173mm
170 mm cranks
173mm
170 mm cranks
173mm
170 mm cranks

Base Build

SMALL
MEDIUM
LARGE
X-LARGE
XX-LARGE
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
2.4in
2.4in
2.4in
2.4in
2.4in
Tire Outer Diameter
705.9mm
705.9mm
705.9mm
705.9mm
705.9mm
Bike Length with Tires
1900.6mm
1930mm
1958.7mm
1983.1mm
2007.5mm
Crank Length
170mm
170mm
170mm
170mm
170mm
Handlebar Width
780mm
780mm
800mm
800mm
800mm
Stem Length
45mm
45mm
45mm
45mm
45mm
Stem Angle
0deg
0deg
0deg
0deg
0deg

Published Sizing Recommendations

Height
159 cm
to
169 cm
167 cm
to
177 cm
175 cm
to
185 cm
183 cm
to
193 cm
191 cm
to
201 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
Source:https://nukeproof.com/products/2021-mega-275-alloy