Head-to-Head
Zoomfly 6vsAdrenaline GTS 25
The Zoomfly 6 is a speed trainer shoe while the Adrenaline GTS 25 is a daily trainer shoe. The Zoomfly 6 retails for $170 while the Adrenaline GTS 25 comes in at $155 — a $15 difference. The Zoomfly 6 is the lighter shoe at 8.6 oz versus 10.6 oz for the Adrenaline GTS 25. In our ratings, the Zoomfly 6 edges out the Adrenaline GTS 25 — 8.8/10 versus 8.2/10.
| Rating | 8.8 / 10✓ | 8.2 / 10 | |
| Price | $170 | $155✓ | |
| Weight | 8.6 oz✓ | 10.6 oz | |
| Category | Speed Trainer | Daily Trainer | |
| Terrain | Road | Road | |
| Cushion | Medium | Medium | |
| Softness | Soft | Balanced | |
| Drop | Medium | High | |
| Drop (mm) | 8 mm | 10 mm | |
| Stack | 40 mm | 37 mm | |
| Stability | Neutral | Stability | |
| Fit | Narrow | Medium | |
| Energy Return | Medium✓ | Low | |
| Breathability | Medium✓ | Warm | |
| Traction | Medium | Medium | |
| Shock Absorption | High✓ | Medium | |
| Durability | Very Good | Very Good |
