| Castle to Trecenydd Lights | 0.70 mi | 39 ft | 1.1% |
| Nantgarw Drag | 0.38 mi | 66 ft | 2.9% |
| Caerphilly Cheese Road Descent | 0.97 mi | -164 ft | -3.2% |
| Caerfillthi Plunge | 1.51 mi | -289 ft | -3.6% |
| Caephilly Cheese Road descent to the bottom | 1.26 mi | -289 ft | -4.3% |
| Roundabout to The Pottery | 0.79 mi | 0 ft | 0.0% |
| Industrial Estate Short | 1.06 mi | 13 ft | 0.1% |
| Outlaws run | 0.08 mi | 3 ft | 1.0% |
| Industrial Estate Flats | 1.02 mi | 13 ft | 0.2% |
| treforest industrial after lights | 0.60 mi | 13 ft | 0.3% |
| roundabout dash | 0.24 mi | -30 ft | -0.7% |
| Powerstation Hill to Roundabout | 0.58 mi | 108 ft | 3.5% |
| Powerstation Hill to Cycle Path | 0.80 mi | 174 ft | 4.1% |
| Powerstation Hill (Petrol station) to Tonteg lights | 0.84 mi | 197 ft | 4.4% |
| Power Station Hill bottom to over-the-top | 0.75 mi | 213 ft | 5.3% |
| Powerstation Sprint | 0.27 mi | 85 ft | 6.0% |
| Top section of Power Station Hill (bypass to Tonteg) | 0.25 mi | 89 ft | 6.5% |
| Up to Tonteg Rd | 0.13 mi | 30 ft | 3.9% |
| Tonteg Road | 0.11 mi | 36 ft | 4.9% |
| Lights to roundabout | 2.64 mi | 102 ft | 0.4% |
| PSH to Crown Hill | 1.70 mi | -33 ft | -0.3% |
| Try and miss the red lights | 2.34 mi | -43 ft | -0.1% |
| Precinct to Station Rd | 0.38 mi | -13 ft | -0.3% |
| Petrol Station Sprint | 0.37 mi | 7 ft | 0.3% |
