ASICS SUPERBLAST 3 (2026) vs ASICS MEGABLAST (2025): WHICH MAX-STACK KING SHOULD YOU BUY? | North Ryde and Redfern Physiotherapy
If you’ve run through the streets of North Ryde, NSW 2113 or hitting the pavement around Coxs Road running clubs, you’ve likely seen the massive foam stacks of the ASICS Blast family.
As the Top Rated Physiotherapists in North Ryde (NSW 2113) & Redfern (NSW 2016), we look beyond the "feel" to how these shoes actually impact your joints biomechanically.
With the ASICS Megablast already a hit and the ASICS Superblast 3 release date confirmed for March 2026, runners are facing a dilemma: Grab the bouncier Megablast now, or wait for the Superblast 3?
Here is the definitive breakdown of the Megablast vs. Superblast 3.
The Tech Breakdown: Foam, Stack and Weight
.Megablast: The Springy "Everything" Shoe
The ASICS Megablast has quickly become a clinic favorite for North Ryde (2113 NSW) runners who want one shoe to do it all. Unlike previous trainers, the Megablast features FF Turbo Squared foam, an ultra-responsive material that feels like a "non-plated super shoe."
It’s incredibly light (~230g) and features a stiff, rockered geometry. This means it doesn't just cushion your landing; it actively propels you into the next stride.
Because the foam doesn't "bottom out" at high speeds, you can use the Megablast for a slow recovery jog on Monday and a 5km PB attempt on Saturday. It has the "pop" needed for speed work that most daily trainers lack.
FF Turbo (Squared) on the Asics Megablast
NEW ASICS Superblast 3 (2026): The Competitive All-Rounder King?
The ASICS Superblast 3 is taking a different path. While the Megablast is a "spring," the SB3 in its DNA will always be more cushioned and softer. Using the new FF Leap (A-TPU) foam and combined with the existing FF Blast+, it’s designed to be more suitable for high-volume daily training yet responsive enough to be a tempo and speed training option. This than the Megablast.
Spongy but Fast, the FF Leap foam & FF Blast+ in the SB3 is more compliant (spongier) and deeper feel than the Megablast. This makes it more forgiving for the "grind" of daily kms.
The Daily Edge, if you find the Megablast a bit too stiff for easy days, the Superblast 3 is your answer. It offers a more "meatier" feel that protects the joints during long efforts but still has enough rebound for tempo runs and race day.
FF Leap on Meta Speed range
The Injury Link: Soft vs. Stiff
From a physiotherapy perspective, the choice between these two shoes often comes down to your injury history:
The Megablast & The Achilles: Because the Megablast is stiffer and more rockered, it reduces the amount of work your big toe and midfoot have to do. However, the aggressive "kick" of the foam can increase the eccentric load on your Achilles tendon and calves.
The Superblast 3 & Ankle Stability: The "spongier" feel of the SB3 is a double-edged sword. While it’s the king of Runner’s Knee prevention due to its massive shock absorption, the softer foam can cause the foot to "wobble" more upon impact. If you have weak lateral stabilizers, the 46.5mm of spongy foam could lead to Peroneal Tendinopathy.
Which One Should You Choose?
Deciding between the two comes down to how you want to feel during your miles.
ASICS Megablast: The Speed Specialist, the Megablast is undeniably the faster shoe. It’s perfect for pushes and, for many runners, can certainly handle long runs. However, from our physio perspective, the Megablast is best utilized for shorter distances and fast tempo speeds. Its stiffer, high-pop geometry is built for those who want to "feel the road" and explode off the pavement.
ASICS Superblast 3: The Versatile All-Rounder with the 2026 upgrades, the Superblast 3 has become the ultimate all-rounder. It has the softness and cushion you want in a daily trainer for those easy recovery miles, yet it gives you access to serious speed whenever you want it thanks to the new FF Leap foam.
