fabiograssi
100 W
I don't know if this is the right place for this, so please move to the better place, if is case to...
http://www.youtube.com/watch?v=NImjxbWTZIU&feature=related
An interesting gearing system for bikes...
- Fabio
http://www.youtube.com/watch?v=NImjxbWTZIU&feature=related
An interesting gearing system for bikes...
- Fabio