2023 Nukeproof Reactor 290C ST Base

Design
Flat Bar, Full suspension
Frame
Carbon/Composite
Suspension
130mm fork travel, 125mm rear travel
Features
Disc brake
Average stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category

Geometry

Medium
Large
X-Large
Stack
608mm
614mm
618mm
Reach
460mm
488mm
521.6mm
Stack to Reach Ratio
1.32:1
1.26:1
1.18:1
Seat Tube Length, Unknown
420mm
458mm
508mm
Top Tube Length, Effective/Horizontal Unknown
608mm
638mm
673mm
Top Tube Slope
19.7deg
15.8deg
11deg
Head Tube Angle
66.8deg
66.8deg
66.8deg
Seat Tube Angle
76.3deg
76.3deg
76.3deg
Head Tube Length
105mm
110mm
115mm
Bottom Bracket Drop
39mm
39mm
39mm
Bottom Bracket Height
335.5mm
335.5mm
335.5mm
Chainstay Length
440mm
440mm
440mm
Chainstay Length Horizontal
438.3mm
438.3mm
438.3mm
Front-Center
755.5mm
785mm
823mm
Front-Center Horizontal
759.7mm
789.7mm
825.7mm
Wheelbase
1198mm
1228mm
1264mm
Fork Offset/Rake
44mm
44mm
44mm
Fork Length (Axle-To-Crown)
537mm
537mm
537mm
Trail
112.6mm
very high
112.6mm
very high
112.6mm
very high
Mechanical Trail
103.5mm
103.5mm
103.5mm
Wheel Flop
40.8mm
40.8mm
40.8mm
Standover Height
730mm
738mm
763mm
Tire to Pedal Spindle
211mm
170 mm cranks
240.5mm
170 mm cranks
278.5mm
170 mm cranks
Pedal Spindle to Ground Clearance
165.5mm
170 mm cranks
165.5mm
170 mm cranks
165.5mm
170 mm cranks

Base Build

Medium
Large
X-Large
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
2.5in
2.5in
2.5in
Tire Width Max
2.6in
2.6in
2.6in
Tire Outer Diameter
749mm
749mm
749mm
Bike Length with Tires
1947mm
1977mm
2013mm
Crank Length
170mm
170mm
170mm
Handlebar Width
780mm
800mm
800mm
Stem Length
45mm
45mm
45mm

Published Sizing Recommendations

Height
5 ft 7 in
to
5 ft 11 in
5 ft 11 in
to
6 ft 3 in
6 ft 3 in
to
6 ft 7 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
Source:https://nukeproof.com/products/07e7-reactor-290-carbon?variant=43829526102252