Asics GT-2000 13 vs Asics GT-2000 14:
Which to Choose

Dimensionally these two are almost indistinguishable. The 13 sits at roughly 270g with a 36.5mm heel / 28.5mm forefoot stack, and the 14 lands at 269g with a 37mm heel / 28mm forefoot stack — a difference of about a gram and a millimeter, which no runner will feel as weight or geometry. Both keep the 8mm drop, both run without a plate, and both retain the wide, guided stability setup (LITETRUSS on the 13, a revised 3D Guidance System and an added medial forefoot pod on the 14) that holds your form steady when a long run gets sloppy. The genuine change is the foam: the 13 rides on FF Blast+ Eco, which cushions impact well but returns energy in a calm, muted, planted way that can feel a touch flat when you try to accelerate. The 14 swaps in FF Blast Max — a softer, more energetic supercritical foam from the same family Asics uses in its Novablast line — which lifts the forefoot slightly and softens the ride, making it more forgiving and marginally livelier underfoot, especially up front. Both stay honest and grounded rather than snappy when you push the pace, and neither is a tempo or race shoe; the 14 is simply the more cushioned, slightly more comfortable version of the same steady-mileage tool. Worth noting on the 14: the toebox runs narrow and the dense upper doesn't breathe especially well on warm runs.