Head-to-Head
Adizero Adios Pro 4vsEndorphin Speed 5
The Adizero Adios Pro 4 is a race shoe while the Endorphin Speed 5 is a speed trainer shoe. The Adizero Adios Pro 4 retails for $250 while the Endorphin Speed 5 comes in at $175 — a $75 difference. The Adizero Adios Pro 4 is the lighter shoe at 7.1 oz versus 8.4 oz for the Endorphin Speed 5. In our ratings, the Adizero Adios Pro 4 edges out the Endorphin Speed 5 — 9.3/10 versus 8.8/10.
| Rating | 9.3 / 10✓ | 8.8 / 10 | |
| Price | $250 | $175✓ | |
| Weight | 7.1 oz✓ | 8.4 oz | |
| Category | Race Shoe | Speed Trainer | |
| Terrain | Road | Road | |
| Cushion | Medium | Medium | |
| Softness | Soft | Balanced | |
| Drop | Medium | Medium | |
| Drop (mm) | 6 mm | 8 mm | |
| Stack | 39 mm | 36 mm | |
| Stability | Neutral | Neutral | |
| Fit | Narrow | Medium | |
| Energy Return | Very High✓ | High | |
| Breathability | Warm | Breathable✓ | |
| Traction | Medium | Medium | |
| Shock Absorption | High✓ | Medium | |
| Durability | Good | Good |
