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Updated Jun 09, 2026 06:38 PM
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Tested using Methodology v0.12
Updated Jun 16, 2026 07:48 PM
SEE PRICE
R.A.D
Weight
227.0 g (8.01 oz)
Heel-To-Toe Drop
13.6 mm
Plate
None
Weight
247.4 g (8.73 oz)
Heel-To-Toe Drop
8.1 mm
Plate
None
Our Verdict
Kiprun Kipstorm Tempo
R.A.D UFO
The Kiprun Kipstorm Tempo and R.A.D UFO are both cushioned, versatile trainers, but their midsoles give them different personalities. The R.A.D uses a dual-density full-PEBA midsole, which creates a bouncier, more energetic underfoot feel while remaining quite stable laterally. The Kiprun uses a supercritical A-TPU top layer for rebound with a firmer EVA carrier layer that adds structure. That gives the Kiprun a very cushioned ride, especially at higher forces, while still feeling lighter and more nimble overall.
Variants
- Kipstorm Tempo (Foggy Blue/Fluo Neon Pink - (Men - US 9))
- Kipstorm Tempo (Foggy Blue/Fluo Neon Pink - (Women - US 7))
- UFO (Highlighter Pink - (Men - US 9))
- UFO (Racing Blue - (Women - US 7))
Main Differences for
Half/Full Marathon Racing
Half/Full Marathon Racing
Threshold
Half/Full Marathon Racing
7.6
7.7
Plate
None
None
Weight
7.3
6.5
Forefoot Energy Return
7.8
8.4
Full Comparison
Design
Weight
7.3
6.5
Right Shoe Weight Photo
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Left Shoe Weight Photo
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Weight
227.0 g (8.01 oz)
247.4 g (8.73 oz)
Stack Heights
Stack Height Photo
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Heel Stack Height
43.6 mm
43.4 mm
Forefoot Stack Height
30.0 mm
35.3 mm
Heel-To-Toe Drop
13.6 mm
8.1 mm
Advertised Heel-To-Toe Drop
8.0 mm
8.0 mm
External Shape
3D Model Full Shoe
Preview 3D
Preview 3D
Outsole Heel Width
85 mm (3.3")
100 mm (3.9")
Outsole Arch Width
77 mm (3.0")
81 mm (3.2")
Outsole Forefoot Width
120 mm (4.7")
119 mm (4.7")
Heel Width-To-Stack Ratio
1.95
2.30
Forefoot Width-To-Stack Ratio
4.00
3.37
Internal Shape
3D Model Internal
Preview 3D
Preview 3D
Internal Length
277 mm (10.9")
279 mm (11.0")
Internal Heel Width
59 mm (2.3")
65 mm (2.6")
Internal Forefoot Width
90 mm (3.5")
91 mm (3.6")
Wide Sizing Available
No
No
Forefoot Fit: Width
9.7
8.6
Forefoot Width Photo
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Ball-Of-Foot TTS Deviation
1.4 mm (0.056")
0.1 mm (0.004")
Toe TTS Deviation
-0.7 mm (-0.028")
-5.3 mm (-0.209")
Forefoot Fit: Height
5.7
2.7
Forefoot Height Photo
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Toe TTS Deviation
-5.1 mm (-0.200")
-8.5 mm (-0.335")
Arch Fit: Width
8.5
9.8
Arch Fit Photo
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Arch Width TTS Deviation
-2.7 mm (-0.105")
2.5 mm (0.098")
Length Fit
7.0
10
Toe Clearance Photo
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Heel Rocker Geometry
7.2
Heel Rocker Photo
Heel Spring
27 mm (1.1")
Heel Apex Position
34.7%
Heel Rocker Angle
14.7°
Forefoot Rocker Geometry
7.3
Forefoot Rocker Photo
Toe Spring
50 mm (2.0")
Toe Apex Position
56.2%
Forefoot Rocker Angle
21.0°
Other Features
Other Features Photo
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Tongue Gusset Type
Fully-gusseted
Fully-gusseted
Plate
None
None
Performance
Heel Compression Energy Return
7.2
8.1
Heel Compression Video
Heel Energy Return
Preview Graph
Preview Graph
Heel Energy Return
77.1%
81.4%
Forefoot Compression Energy Return
7.8
8.4
Forefoot Compression Video
Forefoot Energy Return
Preview Graph
Preview Graph
Forefoot Energy Return
79.9%
83.1%
Heel Cushioning
9.1
8.6
Heel Cushioning Picture
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Heel Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 550N
3.84 J
4.19 J
Energy Absorbed At 1100N
11.92 J
10.28 J
Energy Absorbed At 1900N
20.56 J
17.45 J
Forefoot Cushioning
8.9
8.5
Forefoot Cushioning Picture
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Forefoot Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 800N
5.48 J
5.53 J
Energy Absorbed At 1300N
9.91 J
9.27 J
Energy Absorbed At 2050N
15.08 J
13.32 J
Heel Firmness
3.7
5.5
Heel Firmness
Preview Graph
Heel Firmness Graph
Preview Graph
Firmness At 550N
41.1 N/mm
33.0 N/mm
Firmness At 1100N
80.2 N/mm
45.1 N/mm
Firmness At 1900N
186.0 N/mm
64.8 N/mm
Forefoot Firmness
6.7
5.8
Forefoot Firmness
Preview Graph
Forefoot Firmness Graph
Preview Graph
Firmness At 800N
85.3 N/mm
47.8 N/mm
Firmness At 1300N
161.7 N/mm
63.7 N/mm
Firmness At 2050N
315.6 N/mm
90 N/mm
Forefoot Long Run Cushioning
8.1
8.2
Forefoot Long Run Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 10km
9.01 J
8.97 J
Energy Absorbed At 20km
8.80 J
8.84 J
Energy Absorbed At 30km
8.67 J
8.75 J
Energy Absorbed At 40km
8.57 J
8.69 J
Rocker Stiffness
5.9
Forefoot Rocker Stiffness Video
Forefoot Rocker Stiffness Graph
Preview Graph
Force To Flatten The Rocker
58 N
Forefoot Bending Energy Return
8.1
Forefoot Bending Video
Forefoot Bending Energy Return
Preview Graph
Forefoot Bending Energy Return
72.3%
Forefoot Bending Stiffness
5.8
Forefoot Bending Resistance Picture
Forefoot Bending Resistance
Preview Graph
Forefoot Bending Stiffness
8.1 N/mm
Forefoot Bending Force
221 N
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Kiprun Kipstorm Tempo
R.A.D UFO
Comments
Kiprun Kipstorm Tempo vs R.A.D UFO: Main Discussion
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