| Abbreviation | Definition |
|---|---|
| SORBA | Southern Off Road Bicycle Association |
| SORBA | Southern Off Road Bicycling Association |
| SRBC | Street Retro Bikers Club |
| SRBC | Surabaya Road Bike Community |
| SRCC | Santa Rosa Cycling Club |
| SRMT | Start Right Motorcycle Training |
| SSBN | Submarine stationary bicycle neurosis |
| STP | Soft Tail Pro bicycle |
| STROL | Sunday Trail Riders Organization of Luzon |
| STT | Sportbike Track Time |
| SVBC | Silicon Valley Bicycle Coalition |
| SVBC | Svtcsilicon Valley Bicycle Coalition |
| SWPRA | Solid Waste Planning and Recycling Act |
| TBB | Total Bike Bits |
| TBC | Thomaston Biker Crew |
| TBC | Tucson Bicycle Classic |
| TBC | Tulsa Bicycle Club |
| TBQ | Trikes, Bikes, and Quads |
| TC | Thermal Cycling |
| TCAC | Twin Cities Adaptive Cycling |