ShoesNew BalanceFuelcell Rebel V4

New Balance

New Balance Fuelcell Rebel V4

New Balance Fuelcell Rebel V4. 28mm stack, 213g. Retailer specs verified on Running Warehouse.

PR Run Verified
Soft trailsDaily training

PR Run scores

Grip3/5
Cushion3/5
Protection2/5
Durability3/5
Versatility3/5

PR Run derived fit scores

53Solid

100-miler readiness

Will this shoe survive a hundred-mile night? 28 mm stack, cushion 3/5

74Great

Descent tolerance

Does it save your toenails on long descents? 21.5 mm forefoot, heel counter 2/5

100Elite

Swelling room

Room to grow when your feet swell? 27.3 mm toebox height

72Great

Grit resistance

Does dust stay outside the shoe? 4 BR breathability

23Weak

Hot-day comfort

How well does it breathe in heat? 4 BR / ?% drying

78Great

Achilles-friendly

Kind to a cranky achilles? 6.5 mm drop, heel counter 2/5

Full specs

Drop

6.5 mm

Heel stack

28 mm

Forefoot stack

21.5 mm

Weight

213 g

Plate

No

Waterproof

No

Lab measurements

MeasurementValue
Traction (CoF)0.50
Breathability4 BR
Flexibility8.1 N
Heel counter2/5
Energy return63.1 %
Shock absorption139 SA
Midsole softness23.7 HA
Outsole thickness3.2 mm
Tongue padding2.1 mm
Insole removableYes
Insole thickness2.5 mm
Reflective elementsYes

Lab numbers from RunRepeat. Sources.

Fit intelligence

Toebox width

Narrow toebox (78.4 mm vs 96 mm median)

Toebox height

Slightly tall (27.3 mm vs 25 mm median)

Runs small. Consider a half size up.

Fit numbers from the lab. Swell guidance: foot care.

Questions before you race

Is the New Balance Fuelcell Rebel V4 good for 100-mile races?

Solid. 28 mm stack, cushion 3/5. 100-miler readiness score 53/100.

Does the New Balance Fuelcell Rebel V4 fit wide feet?

No. Toebox is 78.4 mm which is narrow. Look elsewhere if you need width.

What is the drop on the New Balance Fuelcell Rebel V4?

6.5 mm, with a 28 mm heel stack and 21.5 mm forefoot.

Is the New Balance Fuelcell Rebel V4 good on wet rock?

Traction coefficient of friction on wet lab surface: 0.50. Solid grip on wet rock.

Manufacturer specs

New lab data on soft trails shoes, once a month.

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Image: New Balance product photo

Specs: retailer. Verified Sep 2, 2026.

Report inaccurate data: hi@pr.run. Data sources.

New Balance Fuelcell Rebel V4 Review, Specs, and Fit (2026) | PR Run