The New Balance FuelCell Rebel V4 and Asics Novablast 5 are two of the most well-known performance trainers. However, recent updates have changed their functionality, shifting their target audience and use cases.
This comparison will explore key differences in fit, cushioning, stability, and performance, helping determine which shoe is best suited for your running style and foot type.
Fit and Comfort
A well-fitting shoe is crucial for both performance and injury prevention. The Rebel V4 and Novablast 5 offer contrasting fit experiences that may influence suitability for different runners.
New Balance FuelCell Rebel V4
- Toe Box: Wider than many performance shoes, offering room for natural foot splay.
- Fit: True to size, but the aggressive toe spring may initially feel slightly short.
- Upper & Lockdown: Thin gusseted tongue with minimal padding around the heel counter.
- Considerations: The lack of heel padding may be problematic for those with Haglund’s deformity or Achilles bursitis.
ASICS Novablast 5
- Toe Box: Moderately wide, though slightly narrower than the Rebel V4.
- Fit: True to size, with additional padding for a more cushioned feel.
- Upper & Lockdown: Well-padded heel collar and a secure gusseted tongue.
- Considerations: Some runners may find the added cushioning excessive compared to the Hoka Mach 6, which offers a more responsive ride.
Both shoes provide a secure fit, but the Rebel V4 is better suited for those needing a roomier toe box and a lightweight feel, while the Novablast 5 caters to those prioritizing plush comfort.
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Midsole and Cushioning
Cushioning plays a key role in shock absorption, energy return, and comfort, particularly for those dealing with conditions like metatarsalgia, Morton’s neuroma, or Achilles tendinitis.
New Balance FuelCell Rebel V4
- Midsole: FuelCell foam provides a springy, highly responsive ride.
- Stack & Drop: 30mm heel / 24mm forefoot (6mm drop).
- Heel-to-Toe Transition: Aggressive heel bevel and forefoot rocker enhance turnover efficiency.
- Flexibility: A more flexible forefoot may not be ideal for those requiring extra forefoot protection, such as individuals with neuroma pain.
ASICS Novablast 5
- Midsole: FF Blast+ MAX cushioning, offering a softer, more cushioned ride than its predecessor.
- Stack & Drop: 41.5mm heel / 33.5mm forefoot (8mm drop).
- Heel-to-Toe Transition: A moderate forefoot rocker assists in reducing stress on the forefoot.
- Flexibility: A stiffer forefoot provides more protection for those managing metatarsalgia or forefoot discomfort.
For high-energy responsiveness, the Rebel V4 is ideal, while the Novablast 5 is better suited for longer runs and foot conditions requiring added cushioning. Those seeking an even softer experience might also consider the Brooks Glycerin Max.
Stability and Support
While both models are neutral trainers, they differ in how they provide structure and support.
New Balance FuelCell Rebel V4
- Classified as a stable neutral shoe.
- Sidewalls on both medial and lateral sides offer mild support.
- Sole flare and a broad base help enhance ground contact.
- Despite its lightweight design, it provides moderate structure for controlled foot motion.
ASICS Novablast 5
- Classified as a classic neutral shoe.
- Softer midsole allows for more sink-in, reducing inherent stability.
- Less aggressive sidewalls than the Rebel V4, making it more suitable for neutral runners.
Those needing additional stability elements may want to explore the Hoka Arahi 7 or Brooks Adrenaline GTS 24, which both offer more pronation control.
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Weight and Running Efficiency
The weight of a shoe influences turnover speed and running efficiency, particularly for race-day performance and long-distance training.
New Balance FuelCell Rebel V4
- Weight: 218g (Men’s US 9).
- Best For: Tempo runs, speed sessions, and race efforts.
- Ride Feel: Highly energetic, responsive, and fast-turnover friendly.
ASICS Novablast 5
- Weight: 255g (Men’s US 9).
- Best For: Long runs, recovery runs, and easy-paced training.
- Ride Feel: Plush and smooth, though less aggressive than the Rebel V4.
For lightweight speed training, the Rebel V4 is the superior option. If comfort and daily mileage durability are the priority, the Novablast 5 is the better choice.
Use Cases – Which Shoe Fits Different Needs?
New Balance FuelCell Rebel V4
- Best for runners needing a fast, lightweight, non-plated trainer.
- Well-suited for tempo runs, intervals, and racing efforts.
- A good choice for neutral runners who prefer a more flexible forefoot.
ASICS Novablast 5
- Ideal for runners looking for a cushioned daily trainer.
- Great for long-distance running and recovery days.
- **Well-suited for those needing forefoot protection from conditions like metatarsalgia or neuroma pain.
For a true performance trainer, the Rebel V4 is the preferred option. Those looking for an alternative daily cushioned shoe may also want to consider the Hoka Clifton 9.
Final Verdict – Which Shoe is Best?
| Feature | FuelCell Rebel V4 | Novablast 5 |
|---|---|---|
| Best For | Speed, Tempo, Racing | Daily Training, Comfort |
| Heel Drop | 6mm | 8mm |
| Weight | 218g | 255g |
| Stack Height (Heel/Forefoot) | 30mm / 24mm | 41.5mm / 33.5mm |
| Stability Type | Stable Neutral | Classic Neutral |
| Forefoot Rocker | Aggressive | Moderate |
| Best for Foot Conditions | Achilles Tendinitis | Metatarsalgia, Neuroma |
Both the FuelCell Rebel V4 and ASICS Novablast 5 serve different training purposes. The Rebel V4 is designed for speed-focused runners, while the Novablast 5 is built for long-distance comfort and cushioning.
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Medical Disclaimer:
This article is for informational purposes only and does not constitute medical advice. Those experiencing foot pain or injury should consult a qualified healthcare professional before selecting footwear.
