Head-to-Head
Nucleo 2vsEndorphin Speed 5
The Nucleo 2 is a daily trainer shoe while the Endorphin Speed 5 is a speed trainer shoe. The Nucleo 2 retails for $165 while the Endorphin Speed 5 comes in at $175 — a $10 difference. The Endorphin Speed 5 is the lighter shoe at 8.4 oz versus 9.7 oz for the Nucleo 2. In our ratings, the Nucleo 2 edges out the Endorphin Speed 5 — 9.0/10 versus 8.8/10.
| Rating | 9.0 / 10✓ | 8.8 / 10 | |
| Price | $165✓ | $175 | |
| Weight | 9.7 oz | 8.4 oz✓ | |
| Category | Daily Trainer | Speed Trainer | |
| Terrain | Road | Road | |
| Cushion | Medium | Medium | |
| Softness | Balanced | Balanced | |
| Drop | Medium | Medium | |
| Drop (mm) | 5 mm | 8 mm | |
| Stack | 40 mm | 36 mm | |
| Stability | Neutral | Neutral | |
| Fit | Medium | Medium | |
| Energy Return | Low | High✓ | |
| Breathability | Medium | Breathable✓ | |
| Traction | Medium | Medium | |
| Shock Absorption | Medium | Medium | |
| Durability | Good | Good |
