Asics Novablast 6 vs New Balance FuelCell Rebel v5:
Which to Choose

The clearest split is stack height and weight. The Novablast 6 rides on a tall 39mm heel / 32mm forefoot platform and weighs about 249g in a men's US 9, while the Rebel v5 sits far lower at 33mm heel / 27mm forefoot and comes in lighter at roughly 220g — so the Asics gives you noticeably more foam and protection, and the New Balance gives you a leaner, more agile feel. Drop is effectively a wash: 7mm on the Novablast versus 6mm on the Rebel, both keeping you toward the midfoot without dictating your form. Underfoot they get their bounce differently — the Novablast leans on soft, springy FF Blast Max plus a forefoot FF Turbo Squared pod that kicks back on toe-off, while the Rebel uses a PEBA+EVA FuelCell blend with a pronounced rocker that rolls you forward and truly wakes up at threshold. Both are rated neutral with only moderate stability, and, tellingly, both trade a little planted security at slow, shuffling paces for that softer, taller ride, so neither is the pick if you want a locked-down feel when tired. Where they diverge most is range: the Novablast is happy stretching from 10K through the half — its sweet spot — all the way to the marathon and long easy days, whereas the Rebel is sharpest over 5K to the half with the 10K and tempo efforts as its home, tapping out sooner as distance climbs.