| Radball | cycle ball radball |
| radial | radial radially |
| Erdball | earth |
| Handball | handball |
| Rada | rada |
| Radikale | radical |
| Radkralle | wheel clamp |
| Radnabe | hub |
| Radsatz | wheelset |
| prädial | praedial |
| Radar | radar |
| Radau | racket |
| Radiant | radian radiant |
| Radikal | radical |
| radikal | radical |
| Radpolo | bicycle polo bike polo cycle polo |
| graduell | gradual |
| radeln | ride a bike |
| Airball | air ball |
| Breakball | break point |