User:Kirbert
Interests include letterboxing and Jaguar XJ-S automobiles. Also known as the originator of a formula for computing optimum crank length for bicycles.
 | This user is a participant in WikiProject Aviation. |
Interests include letterboxing and Jaguar XJ-S automobiles. Also known as the originator of a formula for computing optimum crank length for bicycles.
| This user is a participant in WikiProject Aviation. |