| Characteristic | R14 | R15 | R16 |
| Radius | 14 inches | 15 inches | 16 inches |
| Reference Vertical load | 2200 N | 8000 N | 11,500 N |
| Effective Roll Radius | 284 mm | 329 mm | 379 mm |
| Unloaded radius | 292 mm | 341 mm | 394 mm |
| Spring Rate | 230 N/mm | 330 N/ mm | 470 N/mm |
| Mass | 15 kg | 22 kg | 28 kg |
| Spin Moment of inertia | 0.8 kg-m2 | 1.2 kg-m2 | 1.7 kg/m2 |
| Width | 175 mm | 215 mm | 255 mm |
| Contact patch dimensions | 70 mm | 90 mm | 80 mm |