| Recta Bidegorri BEC (Av. Euskadi) | 0.49 km | 3 m | 0.6% |
| Cruces (rotonda) - Bifurcacion BibeBike | 8.90 km | 390 m | 3.8% |
| Basatxu desde Cruces (Asfalto+Cemento) | 4.15 km | 252 m | 6.1% |
| Basatxu Osalan C.Aguas | 1.34 km | 93 m | 6.9% |
| Santa Agueda | 4.98 km | 305 m | 6.1% |
| Rampa Depósitos - Santa Ageda | 0.35 km | 25 m | 6.9% |
| Depósito - Señal Sasiburu | 4.56 km | 258 m | 5.5% |
| Depósito señal Sasiburu por atajo (**) | 4.46 km | 253 m | 5.5% |
| Basatxu Bidea Climb | 0.65 km | 104 m | 16.0% |
| Basatxu Kalea rampón hasta paso canadiense | 1.04 km | 58 m | 5.6% |
| Cronoescalada Pulmón Acero? | 10.11 km | 556 m | 5.5% |
| Up to Arroletza | 2.15 km | 195 m | 9.0% |
| Cronoescalada Eretza Pulmón de Acero 2016 | 9.14 km | 438 m | 4.8% |
| Cruces hasta arriba | 1.92 km | 91 m | 2.7% |
| Tellitu Kalea Climb | 0.98 km | 80 m | 8.1% |
| Paso por Peñas Blancas (Apuko) (**) | 1.30 km | 99 m | 7.6% |
| Bajada rápida antes de Saratxo | 0.75 km | -48 m | -6.3% |
| cruce saratxo cruce eretza | 0.98 km | 103 m | 9.5% |
| Atajo Eretza por senda de la calavera (**) | 0.63 km | 58 m | 9.3% |
| 2 Tramo Eretza BIBEbike | 3.09 km | 321 m | 10.4% |
| 1ºtramo Eretza | 1.72 km | 153 m | 8.3% |
| Paralelo Castaños erreka | 0.85 km | -89 m | -8.5% |
| Repecho Loiola | 2.48 km | 223 m | 8.9% |
| Loiolako igoera | 2.32 km | 225 m | 8.5% |
| Bajadita | 1.54 km | -73 m | -1.5% |
| Barrio La Lejana, 4 Climb | 0.66 km | 87 m | 13.0% |
| repecho al repetidor | 0.60 km | 47 m | 7.8% |
| Bajada pulmón acero completa | 4.13 km | -520 m | -12.6% |
| Senderos Argalario | 1.03 km | -156 m | -14.9% |
| DESCENSO PIRULI-SANTA LUCIA | 2.17 km | -324 m | -14.1% |
| DESCENSO TXOKOS DEL ARGALARIO | 0.92 km | -91 m | -9.0% |
| Txokos Argalario | 0.42 km | -83 m | -19.5% |
