| Abbreviation | Definition |
|---|---|
| SABA | Sacramento Area Bicycle Advocates |
| SABR | Seacoast Area Bicycle Routes |
| SACF | South Australian Cycling Federation |
| SAMCA | South Australian Masters Cycling Association |
| SBBC | South Bay Bicycle Coalition |
| SBH | SportBike Hype |
| SBK | Super Bike |
| SBL | Southern Bicycle League |
| SBN | SportBike Network |
| SCB | Short Cutting Biker |
| SCBC | Sonoma County Bicycle Coalition |
| SCCCC | Santa Cruz County Cycling Club |
| SCU | Scottich Cycling Union |
| SFBC | San Francisco Bicycle Coalition |
| SFCC | San Francisco Cycling Club |
| SHCC | ShortHills Cycling Club (Niagara, ON) |
| SHM | Sturt Holdfast Marion Cycling Club |
| SIBA | Staten Island Bicycling Association |
| SJW | South Jersey Wheelmen Cycling Club |
| SMTB | Street MounTain Bike |