Which is lighter, the Asics GT-2000 12 or the GT-2000 13?

Neither by a meaningful margin. Both weigh about 9.4 oz in a men's US 9.

Do the Asics GT-2000 12 and GT-2000 13 come in the same widths?

Yes. Both run in D, 2E, 4E for men's sizes, so a width that fit in the GT-2000 12 carries over to the GT-2000 13.

How do the stack heights compare?

36 mm heel and 28 mm forefoot on the Asics GT-2000 12, against 36.5 mm and 28.5 mm on the GT-2000 13. That is 0.5 mm more under the heel and 0.5 mm more under the forefoot. See the stack height note in the table above: the published figures changed convention mid-lineage.

Is the GT-2000 13 still the newest GT-2000?

No. The GT-2000 14 replaced it in 2025, so the GT-2000 13 now sells as an older model and usually below its $140 list price.

Asics GT-2000 12 vs GT-2000 13

Updated August 7, 2026. Specs are men's US 9.

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Refined, same shoe

THE SHORT ANSWER

Whichever your size still exists in. The GT-2000 12 is discontinued at retail, so remaining pairs sell against a thinning size run, while the GT-2000 13 has a full one.

Asics GT-2000 12Sizes running outMen's at Amazon Women's
Asics GT-2000 13Men's at Amazon Women's

Availability last checked Aug 7, 2026. Prices and stock change without notice.

GT-2000 12 · 2023

GT-2000 13 · 2024

Every spec, side by side

Spec	GT-2000 12	GT-2000 13
FIT AND WEIGHT
Weight	9.4 oz	9.4 oz
Widths	D, 2E, 4E	D, 2E, 4E
Upper	Engineered mesh with a semi-gusseted tongue	Engineered mesh with a slim tongue and heel pull tab
CUSHIONING GEOMETRY
Heel stack	36 mm	36.5 mm
	Half a millimeter, on paper and in Asics's own claim. Treat the platforms as the same.
Forefoot stack	28 mm	28.5 mm
Drop	8 mm	8 mm
MATERIALS
Midsole	FF Blast+ foam with a rearfoot PureGEL pod	FF Blast+ foam with a rearfoot PureGEL pod
VALUE
List price at launch	$140	$140
OTHER CHANGES
Outsole	Standard layout	New segmentation on a wider heel base
	Heel base out to 102 mm; part of why the 13 feels a touch steadier and quicker than the 12.

Weighing whether to switch at all, rather than which of these two to buy? What replaced the Asics GT-2000 12 covers the verdict on the update, what loyalists made of it, and the closest alternatives from other brands.

Buy the GT-2000 12

Sizes running out

Discontinued at retail. Amazon carries what remains, so treat an in-stock size as a closing window, and expect prices to swing.

Men's: Check remaining stock Women's: Check remaining stock

Availability last checked Aug 7, 2026.

Buy the GT-2000 13

Stocked at Amazon

Men's: Check price at Amazon Women's: Check price at Amazon

Availability last checked Aug 7, 2026.

Questions runners ask

Which is lighter, the Asics GT-2000 12 or the GT-2000 13?: Neither by a meaningful margin. Both weigh about 9.4 oz in a men's US 9.
Do the Asics GT-2000 12 and GT-2000 13 come in the same widths?: Yes. Both run in D, 2E, 4E for men's sizes, so a width that fit in the GT-2000 12 carries over to the GT-2000 13.
How do the stack heights compare?: 36 mm heel and 28 mm forefoot on the Asics GT-2000 12, against 36.5 mm and 28.5 mm on the GT-2000 13. That is 0.5 mm more under the heel and 0.5 mm more under the forefoot. See the stack height note in the table above: the published figures changed convention mid-lineage.
Is the GT-2000 13 still the newest GT-2000?: No. The GT-2000 14 replaced it in 2025, so the GT-2000 13 now sells as an older model and usually below its $140 list price.