Products
Tested using Methodology v0.15
Updated Sep 17, 2026 04:23 PM
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Diadora
Tested using Methodology v0.15
Updated Sep 03, 2026 04:10 PM
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RoadRunnerSports.com
Heel Stack Height
38.9 mm
Weight
283.8 g (10.01 oz)
Heel-To-Toe Drop
8.1 mm
Plate
None
Heel Stack Height
41.8 mm
Weight
290.9 g (10.26 oz)
Heel-To-Toe Drop
10.1 mm
Plate
None
Our Verdict
Diadora Nucleo 2
Nike Structure Plus
The Nike Structure Plus and Diadora Nucleo 2 are very similar stability-focused shoes that use sidewalls to guide the ride, but the Nike is the better daily trainer overall. It's much more cushioned underfoot, especially for heel strikers, and though it isn't lively, the ride is much less dull than the Diadora. The Diadora is lighter and more stable, however, rolling more smoothly through the whole stride, so if you want the most secure shoe in a less cumbersome package, it’s the one to get.
Variants
- Nucleo 2 (White/Bosphorus - (Men - US 9))
- Nucleo 2 (White/Silver - (Women - US 7))
- Structure Plus (Black/White/Anthracite - (Men - US 9))
- Structure Plus (Iron Purple/Off Noir/Sail/Voltage Green - (Men - US 9))
Main Differences for
Half/Full Marathon Racing
Half/Full Marathon Racing
Threshold
Half/Full Marathon Racing
6.0
6.6
Forefoot Bending Energy Return
2.1
6.7
Forefoot Compression Energy Return
2.2
6.2
Full Comparison
Design
Weight
5.1
4.8
Right Shoe Weight Photo
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Left Shoe Weight Photo
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Weight
283.8 g (10.01 oz)
290.9 g (10.26 oz)
Stack Heights
Stack Height Photo
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Heel Stack Height
38.9 mm
41.8 mm
Forefoot Stack Height
30.8 mm
31.7 mm
Heel-To-Toe Drop
8.1 mm
10.1 mm
Advertised Heel-To-Toe Drop
5.0 mm
10.0 mm
External Shape
3D Model Full Shoe
Preview 3D
Preview 3D
Outsole Heel Width
98 mm (3.9")
95 mm (3.7")
Outsole Arch Width
72 mm (2.8")
82 mm (3.2")
Outsole Forefoot Width
116 mm (4.6")
117 mm (4.6")
Heel Width-To-Stack Ratio
2.52
2.27
Forefoot Width-To-Stack Ratio
3.76
3.69
Internal Shape
3D Model Internal
Preview 3D
Preview 3D
Internal Length
280 mm (11.0")
281 mm (11.1")
Internal Heel Width
66 mm (2.6")
68 mm (2.7")
Internal Forefoot Width
91 mm (3.6")
91 mm (3.6")
Wide Sizing Available
Yes
Yes
Forefoot Fit: Width
8.7
9.5
Forefoot Width Photo
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Ball-Of-Foot TTS Deviation
3.8 mm (0.149")
0.1 mm (0.004")
Toe TTS Deviation
6.4 mm (0.254")
-2.5 mm (-0.098")
Forefoot Fit: Height
6.5
4.5
Forefoot Height Photo
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Toe TTS Deviation
-4.2 mm (-0.166")
-6.5 mm (-0.255")
Arch Fit: Width
10
7.5
Arch Fit Photo
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Arch Width TTS Deviation
0.6 mm (0.022")
-4.0 mm (-0.159")
Length Fit
10
10
Toe Clearance Photo
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Heel Rocker Geometry
6.0
7.9
Heel Rocker Photo
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Heel Spring
15 mm (0.6")
28 mm (1.1")
Heel Apex Position
14.1%
15.7%
Heel Rocker Angle
19.7°
30.8°
Forefoot Rocker Geometry
7.5
5.1
Forefoot Rocker Photo
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Toe Spring
52 mm (2.0")
37 mm (1.5")
Toe Apex Position
61.4%
66.7%
Forefoot Rocker Angle
24.3°
20.3°
Foam
Primary Foam Picture
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Secondary Foam Picture
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Primary Foam Name
ZoomX
Primary Foam Name
ANIMA
Primary Foam Type
EVA
TPE + PEBA
Secondary Foam Name
ReactX
Secondary Foam Name
No Secondary Foam
Secondary Foam Type
No Secondary Foam
TPEE + EVA
Laces
Laces Picture
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Lace Type
Flat
Flat
Width
6.0 mm (0.2")
6.0 mm (0.2")
Thickness
1.8 mm (0.1")
1.6 mm (0.1")
Stretch
10.0%
15.0%
Other Features
Other Features Photo
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Tongue Gusset Type
Fully-gusseted
Non-gusseted
Plate
None
None
Performance
Heel Compression Energy Return
0.8
4.3
Heel Compression Video
Heel Energy Return
Preview Graph
Preview Graph
Heel Energy Return
63.3%
71.0%
Forefoot Compression Energy Return
2.2
6.2
Forefoot Compression Video
Forefoot Energy Return
Preview Graph
Preview Graph
Forefoot Energy Return
68.2%
73.9%
Heel Cushioning
7.0
8.0
Heel Cushioning Picture
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Heel Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 550N
2.79 J
3.26 J
Energy Absorbed At 1100N
8.89 J
10.11 J
Energy Absorbed At 1900N
15.94 J
17.60 J
Forefoot Cushioning
7.0
7.0
Forefoot Cushioning Picture
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Forefoot Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 800N
4.10 J
4.15 J
Energy Absorbed At 1300N
7.56 J
7.40 J
Energy Absorbed At 2050N
11.38 J
11.29 J
Heel Firmness
8.9
8.0
Heel Firmness Graph
Preview Graph
Preview Graph
Firmness At 550N
56.7 N/mm
47.1 N/mm
Firmness At 1100N
63.5 N/mm
54.2 N/mm
Firmness At 1900N
85.5 N/mm
74.5 N/mm
Forefoot Firmness
9.3
8.9
Forefoot Firmness Graph
Preview Graph
Preview Graph
Firmness At 800N
75.3 N/mm
66.4 N/mm
Firmness At 1300N
92.8 N/mm
85.5 N/mm
Firmness At 2050N
125 N/mm
116 N/mm
Forefoot Long Run Cushioning
6.4
6.5
Forefoot Long Run Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 10km
7.11 J
7.02 J
Energy Absorbed At 20km
6.85 J
6.90 J
Energy Absorbed At 30km
6.73 J
6.83 J
Energy Absorbed At 40km
6.64 J
6.78 J
Rocker Stiffness
5.5
4.4
Forefoot Rocker Stiffness Video
Forefoot Rocker Stiffness Graph
Preview Graph
Preview Graph
Force To Flatten The Rocker
51 N
34 N
Forefoot Bending Energy Return
2.1
6.7
Forefoot Bending Video
Forefoot Bending Energy Return
Preview Graph
Preview Graph
Forefoot Bending Energy Return
47.0%
63.4%
Forefoot Bending Stiffness
7.1
6.5
Forefoot Bending Resistance Picture
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Forefoot Bending Resistance
Preview Graph
Preview Graph
Forefoot Bending Stiffness
9.3 N/mm
9.2 N/mm
Forefoot Bending Force
357 N
256 N
Heel Compression Depth
4.9
5.8
Heel Compression Graph
Preview Graph
Preview Graph
Heel Compression At 550N
9.7 mm
11.7 mm
Heel Compression At 1100N
17.3 mm
20.3 mm
Heel Compression At 1900N
22.2 mm
25.5 mm
Forefoot Compression Depth
4.7
5.2
Forefoot Compression Graph
Preview Graph
Preview Graph
Forefoot Compression At 800N
10.6 mm
12.0 mm
Forefoot Compression At 1300N
14.0 mm
15.2 mm
Forefoot Compression At 2050N
16.4 mm
17.6 mm
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Diadora Nucleo 2
Nike Structure Plus
Comments
Diadora Nucleo 2 vs Nike Structure Plus: Main Discussion
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