Kuru
Kuru Ridge Motion
Kuru Ridge Motion. 38.6mm stack, 458g. Retailer specs verified on Running Warehouse.
PR Run scores
PR Run derived fit scores
100-miler readiness
Will this shoe survive a hundred-mile night? 38.6 mm stack, cushion 5/5
Descent tolerance
Does it save your toenails on long descents? 26.5 mm forefoot, heel counter 5/5
Swelling room
Room to grow when your feet swell? 28.4 mm toebox height
Grit resistance
Does dust stay outside the shoe? 73 BR breathability
Hot-day comfort
How well does it breathe in heat? 73 BR / 50% drying
Achilles-friendly
Kind to a cranky achilles? 12.1 mm drop, heel counter 5/5
Full specs
Drop
12.1 mm
Heel stack
38.6 mm
Forefoot stack
26.5 mm
Weight
458 g
Lug depth
3.7 mm
Plate
No
Waterproof
No
Lab measurements
| Measurement | Value |
|---|---|
| Traction (CoF) | 0.58 |
| Breathability | 73 BR |
| Drying potential | 50 % |
| Flexibility | 20.9 N |
| Torsional rigidity | 24.50 Nm |
| Heel counter | 5/5 |
| Energy return | 45.8 % |
| Shock absorption | 100 SA |
| Midsole softness | 39.2 HA |
| Softness in cold | 23 % |
| Outsole thickness | 1.9 mm |
| Tongue padding | 13.7 mm |
| Insole removable | Yes |
| Insole thickness | 5.5 mm |
| Reflective elements | Yes |
Fit intelligence
Toebox width
Narrow toebox (74.0 mm vs 96 mm median)
Toebox height
Tall toebox (28.4 mm vs 25 mm median)
Fit intel pending.
Fit numbers from the lab. Swell guidance: foot care.
Questions before you race
Is the Kuru Ridge Motion good for 100-mile races?
Elite. 38.6 mm stack, cushion 5/5. 100-miler readiness score 94/100.
Does the Kuru Ridge Motion fit wide feet?
No. Toebox is 74.0 mm which is narrow. Look elsewhere if you need width.
What is the drop on the Kuru Ridge Motion?
12.1 mm, with a 38.6 mm heel stack and 26.5 mm forefoot.
Is the Kuru Ridge Motion good on wet rock?
Traction coefficient of friction on wet lab surface: 0.58. Elite grip on wet rock.
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swellingRoom: 100/100 (Elite)
descentTolerance: 100/100 (Elite)
gritIngressRisk: 77/100 (Great)
hotFootScore: 83/100 (Elite)
achillesFriendlyScore: 26/100 (Weak)
hundredMilerReadiness: 94/100 (Elite)