Head-to-Head
Nucleo 2vsCielo X1 3.0
The Nucleo 2 is a daily trainer shoe while the Cielo X1 3.0 is a race shoe. The Nucleo 2 retails for $165 while the Cielo X1 3.0 comes in at $275 — a $110 difference. The Cielo X1 3.0 is the lighter shoe at 6.8 oz versus 9.7 oz for the Nucleo 2. In our ratings, the Nucleo 2 edges out the Cielo X1 3.0 — 9.0/10 versus 8.6/10.
| Rating | 9.0 / 10✓ | 8.6 / 10 | |
| Price | $165✓ | $275 | |
| Weight | 9.7 oz | 6.8 oz✓ | |
| Category | Daily Trainer | Race Shoe | |
| Terrain | Road | Road | |
| Cushion | Medium | Medium | |
| Softness | Balanced | Soft | |
| Drop | Medium | Medium | |
| Drop (mm) | 5 mm | 7 mm | |
| Stack | 40 mm | 38 mm | |
| Stability | Neutral | Neutral | |
| Fit | Medium | Narrow | |
| Energy Return | Low | High✓ | |
| Breathability | Medium | Medium | |
| Traction | Medium | High✓ | |
| Shock Absorption | Medium | High✓ | |
| Durability | Good✓ | Bad |

