New Balance FuelCell Propel v5 vs On Cloudsurfer 2:
Which to Choose

On paper these two track closely: both are neutral, both skip a plate and generate their bounce from the foam itself, both carry moderate (not max) cushioning, and both are happiest in the same 5:00–5:45 min/km everyday zone with a fastest effective gear around 4:45–5:15 min/km. Stack height is near-identical — the Propel v5 sits at roughly 35mm heel / 28.5mm forefoot against the Cloudsurfer 2's ~34mm heel / 27mm forefoot — so neither is meaningfully more protective than the other. The real separators are three. First, drop: the Propel runs a 6mm offset versus the Cloudsurfer's 7mm, a small but real difference that gives the On a slightly more forward, calf-engaging feel. Second, weight: the Cloudsurfer 2 is the lighter shoe at around 255–260g, where the Propel v5 lands closer to 273g, so the On feels a touch nimbler underfoot on pickups. Third, and most important, ride character: the Propel's FuelCell midsole delivers a smooth, forgiving, mildly bouncy roll that's friendly at a range of paces, while the Cloudsurfer's Helion foam in the CloudTec Phase geometry rolls through a sequence of collapsing "clouds" — springier and more distinctive when you're moving, but noticeably less planted at very slow jogs. Use case is the other wrinkle: the Propel genuinely covers 5K through half with the 10K as its sweet spot, while the Cloudsurfer is really a 10K-to-half shoe that doesn't want to go much shorter or longer. Both get slightly vague on tight corners at easy pace, so neither is a stability pick.