Products
Tested using Methodology v0.10
Updated Mar 16, 2026 06:00 PM
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Amazon.com
Tested using Methodology v0.9
Updated Apr 13, 2026 02:55 PM
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Amazon.com
Weight
214.7 g (7.57 oz)
Heel-To-Toe Drop
7.3 mm
Plate
None
Weight
308.4 g (10.88 oz)
Heel-To-Toe Drop
10.9 mm
Plate
None
Our Verdict
New Balance FuelCell Rebel v4
ASICS GEL-KAYANO 31
For most runners, the New Balance FuelCell Rebel v4 has some advantages over the ASICS GEL-KAYANO 31. It's a significantly lighter shoe that has some ground feel due to its much lower stack height than the GEL-KAYANO. Thanks to its more responsive foam, the New Balance is a bit more efficient and better at picking up the pace. The GEL-KAYANO is still a better fit for runners who prefer higher stacks or need a stability shoe.
Variants
- FuelCell Rebel v4 (Black/Graphite - (Men - US 9))
- FuelCell Rebel v4 (Black/Graphite/White - (Women - US 7))
- GEL-KAYANO 31 (Birch/Energy Aqua - (Women - US 7))
- GEL-KAYANO 31 (Black/Black - (Men - US 9))
Main Differences for
Marathon Racing
Marathon Racing
Threshold
Marathon Racing
5.3
5.2
Forefoot Energy Return
6.0
1.3
Heel Stack Height
31.3 mm
42.2 mm
Forefoot Stack Height
24.0 mm
31.3 mm
Weight
7.7
4.0
Heel Energy Return
5.5
1.6
Full Comparison
Design
Weight
7.7
4.0
Right Shoe Weight Photo
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Left Shoe Weight Photo
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Weight
214.7 g (7.57 oz)
308.4 g (10.88 oz)
Stack Heights
Stack Height Photo
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Heel Stack Height
31.3 mm
42.2 mm
Forefoot Stack Height
24.0 mm
31.3 mm
Heel-To-Toe Drop
7.3 mm
10.9 mm
Advertised Heel-To-Toe Drop
6.0 mm
10.0 mm
External Shape
3D Model Full Shoe
Preview 3D
Preview 3D
Outsole Heel Width
95 mm (3.7")
95 mm (3.7")
Outsole Arch Width
77 mm (3.0")
84 mm (3.3")
Outsole Forefoot Width
116 mm (4.6")
117 mm (4.6")
Heel Width-To-Stack Ratio
3.04
2.25
Forefoot Width-To-Stack Ratio
4.83
3.73
Internal Shape
3D Model Internal
Preview 3D
Preview 3D
Internal Length
274 mm (10.8")
279 mm (11.0")
Internal Heel Width
64 mm (2.5")
66 mm (2.6")
Internal Forefoot Width
95 mm (3.7")
96 mm (3.8")
Wide Sizing Available
Yes
Yes
Forefoot Fit: Width
7.8
Forefoot Width Photo
Ball-Of-Foot TTS Deviation
7.4 mm (0.293")
Toe TTS Deviation
2.5 mm (0.099")
Forefoot Fit: Height
7.1
Forefoot Height Photo
Toe TTS Deviation
-3.5 mm (-0.138")
Arch Fit: Width
6.0
Arch Fit Photo
Arch Width TTS Deviation
-5.8 mm (-0.226")
Length Fit
7.0
Toe Clearance Photo
Other Features
Other Features Photo
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Tongue Gusset Type
Semi-gusseted
Fully-gusseted
Plate
None
None
Performance
Heel Energy Return
5.5
1.6
Heel Compression Video
Heel Energy Return
Preview Graph
Preview Graph
Heel Energy Return
72.6%
66.8%
Forefoot Energy Return
6.0
1.3
Forefoot Compression Video
Forefoot Energy Return
Preview Graph
Preview Graph
Forefoot Energy Return
73.4%
65.7%
Heel Cushioning
6.1
7.6
Heel Cushioning Picture
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Heel Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 550N
3.17 J
3.20 J
Energy Absorbed At 1100N
7.75 J
9.25 J
Energy Absorbed At 1900N
12.55 J
16.85 J
Forefoot Cushioning
5.7
6.6
Forefoot Cushioning Picture
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Forefoot Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 800N
3.71 J
3.74 J
Energy Absorbed At 1300N
6.10 J
7.11 J
Energy Absorbed At 2050N
8.64 J
11.05 J
Heel Firmness
7.1
5.1
Heel Firmness
Preview Graph
Preview Graph
Firmness At 550N
61.5 N/mm
53.0 N/mm
Firmness At 1100N
149.9 N/mm
103.6 N/mm
Firmness At 1900N
342.2 N/mm
198.1 N/mm
Forefoot Firmness
9.1
8.0
Forefoot Firmness
Preview Graph
Preview Graph
Firmness At 800N
145.2 N/mm
113.7 N/mm
Firmness At 1300N
317.3 N/mm
209.5 N/mm
Firmness At 2050N
622.7 N/mm
392.1 N/mm
Forefoot Long Run Cushioning
5.0
6.1
Forefoot Long Run Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 10km
5.49 J
6.67 J
Energy Absorbed At 20km
5.34 J
6.52 J
Energy Absorbed At 30km
5.24 J
6.44 J
Energy Absorbed At 40km
5.16 J
6.39 J
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New Balance FuelCell Rebel v4
ASICS GEL-KAYANO 31
Comments
New Balance FuelCell Rebel v4 vs ASICS GEL-KAYANO 31: Main Discussion
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