Head-to-Head
Nucleo 2vsStreakfly 2
The Nucleo 2 is a daily trainer shoe while the Streakfly 2 is a race shoe. The Nucleo 2 retails for $165 while the Streakfly 2 comes in at $180 — a $15 difference. The Streakfly 2 is the lighter shoe at 5.1 oz versus 9.7 oz for the Nucleo 2. In our ratings, the Nucleo 2 edges out the Streakfly 2 — 9.0/10 versus 8.9/10.
| Rating | 9.0 / 10✓ | 8.9 / 10 | |
| Price | $165✓ | $180 | |
| Weight | 9.7 oz | 5.1 oz✓ | |
| Category | Daily Trainer | Race Shoe | |
| Terrain | Road | Road | |
| Cushion | Medium | Low | |
| Softness | Balanced | Soft | |
| Drop | Medium | Low | |
| Drop (mm) | 5 mm | 4 mm | |
| Stack | 40 mm | 27 mm | |
| Stability | Neutral | Neutral | |
| Fit | Medium | Narrow | |
| Energy Return | Low | Very High✓ | |
| Breathability | Medium | Breathable✓ | |
| Traction | Medium | Medium | |
| Shock Absorption | Medium✓ | Low | |
| Durability | Good✓ | Bad |
