Hoka Mach X 2 vs New Balance FuelCell SuperComp Rebel:
Which to Choose

Start with the foam and plate, because that's where the ride diverges. The Mach X 2 is a two-part midsole — a firmer supercritical EVA base with a bouncier PEBA layer on top, split by a full winged composite (Pebax) plate. That gives it a planted, rolling, rocker-driven ride that stays composed when you lean on it: lively and springy rather than pillowy, with propulsion spread across the whole footprint. The Rebel instead runs a full-length supercritical Infinion (A-TPU) midsole — the same bouncy compound as New Balance's SC Elite racer — tuned with only a partial carbon-infused Energy Arc plate under the forefoot. The result is softer and more eager underfoot, with a gentle propulsive kick that arrives at toe-off rather than carrying you through the whole stride. Both run a low drop (Mach X 2 at 5mm, Rebel at 4mm) and both carry tall, near-maximal stacks, so neither is a low-slung shoe. Weight is a genuine, measurable separator: the Rebel comes in around 207g in a men's US 9, while the Mach X 2 is roughly 252g at the same size — a noticeable ~45g gap you'll feel when you shift into top gear. Stability is where the soft/firm contrast matters: both are neutral and rated moderate (3/6), but the Mach X 2's firmer base keeps it feeling settled, while the Rebel's taller, softer platform gets a little tippy at slow paces and really wants you to drive it. Finally, range: the Mach X 2 claims 10K through the half and has enough cushioning to see you through a full marathon, whereas the Rebel is sharpest from 5K to the half and starts asking more of your stability than it returns beyond that distance.