What replaced the Brooks Adrenaline GTS 21?
Updated July 29, 2026. Specs are men's US 9.
Amazon links on this page pay us a commission. It never changes your price. Details
THE SHORT ANSWER
The Adrenaline GTS 22 replaced the GTS 21 in December 2021 and changed almost nothing on purpose. The midsole became one continuous piece of DNA Loft, the ride firmed up a touch, and the price rose $10 to $140.
At a glance
- The Adrenaline GTS 22 is 0.2 oz lighter
- Drop is unchanged at 12 mm
- New midsole foam
- List price up $10
Every spec side by side, with the reason behind each change: Adrenaline GTS 21 vs 22.
Stay on your shoe, or switch?
Faithful successorThe 22 is the most conservative update in the modern line. Same platform, same fit, ten more dollars, and a ride that came out a shade firmer than the 21. If you liked the 21 you will not object to the 22, but you also got nothing new for the price bump.
Stick with the Adrenaline GTS 21 if
- You prefer the 21's slightly softer feel and can find remaining stock
- Paying $10 more for a near-identical shoe annoys you on principle
Old stock is gone; see alternatives below.
Move to the Adrenaline GTS 22 if
- You want the tougher outsole; the added rubber wears noticeably longer
- Your size is gone in the 21, which it mostly is
Where the Brooks Adrenaline GTS is now
Four generations separate the Brooks Adrenaline GTS 21 from the Adrenaline GTS 25 (2025), so the gap is wider than any single update suggests:
- The Adrenaline GTS 25 is 0.2 oz heavier
- 1 mm more heel stack
- Drop moved from 12 mm to 10 mm
- New midsole foam
- List price up $15
What loyalists said about the update
The mildest grumbling in the lineage, aimed at stagnation rather than change. One lab review scored it 75 out of 100, calling the midsole excessively firm and the shoe heavy, while still praising its durability, grip, and dependable stability. Multiple outlets noted how little separated it from the 21.
Still want the original?
Buy remaining Adrenaline GTS 21 stock
Sizes running outDiscontinued at retail. Amazon carries what remains, so treat an in-stock size as a closing window, and expect prices to swing.
Men's stock is gone.
Women's: Check remaining stockAvailability last checked Jul 29, 2026.
Ready to move on?
Beyond the Adrenaline GTS 22, these come closest to what the Adrenaline GTS 21 did.
- 10.5 oz
- 8 mm drop
- 39 mm heel
- $170 list
The Kayano is the other default stability recommendation and the most common head-to-head. It is taller, softer, plusher, and $25 more, with guidance built into the shape of the platform rather than side rails.
Against your Brooks Adrenaline GTS 21: the same weight, 3 mm more heel stack, 4 mm less drop, $40 more at list.
- 10.2 oz
- 10 mm drop
- 36 mm heel
- $150 list
The Ghost is the Adrenaline without the GuideRails: same brand, similar fit, same foam generation. Runners whose stability needs were mild often move over and miss nothing.
Against your Brooks Adrenaline GTS 21: 0.2 oz lighter, 2 mm less drop, $20 more at list.
- 10.4 oz
- 10 mm drop
- 38 mm heel
- $145 list
The Structure is the Nike counterpart, a firmer, geometry-based stability workhorse that went through the same post-deleting transition. It is the cross-shop for runners who prefer a snappier, more traditional Nike fit.
Against your Brooks Adrenaline GTS 21: the same weight, 2 mm more heel stack, 2 mm less drop, $15 more at list.
Questions runners ask
- Is the Brooks Adrenaline GTS 21 still available?
- Partially. Women's sizes still turn up on Amazon, but men's stock is gone. If your size shows up, decide quickly; discontinued stock only shrinks.
- Is the Adrenaline GTS 22 a downgrade from the Brooks Adrenaline GTS 21?
- No. The Adrenaline GTS 22 keeps the same ride and fixes small things. If you liked the Brooks Adrenaline GTS 21, the update carries over without an adjustment period.
- How much lighter is the Adrenaline GTS 22?
- 0.2 oz lighter in a men's US 9: 10.2 oz against the Brooks Adrenaline GTS 21's 10.4 oz.
- Is the Brooks Adrenaline GTS still made?
- Yes. The current version is the Brooks Adrenaline GTS 25, released in 2025, 4 versions on from the Brooks Adrenaline GTS 21.
- What is the closest current alternative to the Brooks Adrenaline GTS 21?
- The Asics Gel-Kayano 33. The Kayano is the other default stability recommendation and the most common head-to-head. It is taller, softer, plusher, and $25 more, with guidance built into the shape of the platform rather than side rails.