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Brooks

Adrenaline GTS 21

StabilityReleased 2020-08TW

The Adrenaline GTS 21 is a stability road trainer using GuideRails to manage excess movement. It retains the GTS 20 support concept while extending DNA LOFT from heel to forefoot and pairing it with BioMoGo DNA for smooth cushioning and transitions. Engineered mesh with larger ventilation openings and a 3D Fit Print saddle balance airflow, stretch and hold. It is built for road training, including longer runs.

Intended uses:
Daily
4 sources · checked 2026-08-20

Specs

Among 865 listed shoes, this is a heavier Stability

Weight
295g
Of 811 known values: 590 lower, 18 equal, 203 higher. The marker uses the midpoint of equal values.
heavierUpper 27.3%, including ties / average +28g
Drop
12mm
Of 815 known values: 783 lower, 31 equal, 1 higher. The marker uses the midpoint of equal values.
higherUpper 3.9%, including ties / average +5.2mm
Stack height (heel/forefoot)
-
Not registered
Carbon plate
No
83% of 786 known models have no carbon plates
Midsole
DNA LOFT
Outsole
Blown rubber with HPR heel rubber
Reference price
$129.95
US price
Weight measurement and plate details
Weight note
Specialist/retailer coverage lists approx. 10.4oz / 294.8g; Brooks official ReStart page confirms model and original new price but not numeric weight/drop.
Plate note
Exact Brooks regional news and the manufacturer's exact product archive identify DNA LOFT/BioMoGo DNA, GuideRails, Segmented Crash Pad, Blown Rubber, and HPR Heel Rubber. No carbon structure is identified, so the model is classified as not carbon-plated.
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Comparison: All data (865 shoes)

Spec distributions

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This shoeregistered average

Weight

This shoe 295g·registered average 267g (811 shoes)

97g375g

Drop

This shoe 12mm·registered average 6.8mm (815 shoes)

0mm13.8mm

Items with missing numeric values are excluded. Sample sizes and measurement conditions vary between models; this distribution is not a performance ranking.