Head-to-Head
Nucleo 2vsAero Razor
The Nucleo 2 is a daily trainer shoe while the Aero Razor is a speed trainer shoe. The Nucleo 2 retails for $165 while the Aero Razor comes in at $140 — a $25 difference. The Aero Razor is the lighter shoe at 6.9 oz versus 9.7 oz for the Nucleo 2. In our ratings, the Nucleo 2 edges out the Aero Razor — 9.0/10 versus 8.9/10.
| Rating | 9.0 / 10✓ | 8.9 / 10 | |
| Price | $165 | $140✓ | |
| Weight | 9.7 oz | 6.9 oz✓ | |
| Category | Daily Trainer | Speed Trainer | |
| Terrain | Road | Road | |
| Cushion | Medium | Medium | |
| Softness | Balanced | Firm | |
| Drop | Medium | Low | |
| Drop (mm) | 5 mm | 4 mm | |
| Stack | 40 mm | 36 mm | |
| Stability | Neutral | Neutral | |
| Fit | Medium | Narrow | |
| Energy Return | Low | High✓ | |
| Breathability | Medium | Breathable✓ | |
| Traction | Medium | High✓ | |
| Shock Absorption | Medium | Medium | |
| Durability | Good | Good |
