| Perfect for most rubber band free flight airplanes models, SIG's Sport Rubber is for the everyday modeler desiring high quality power at a reasonable price. Made of pure synthetic rubber, it is available in 3.2, 4.8 and 6.4 mm widths. |
| SIGSR014 | 6.4 [1-LB] 70 m |
| SIGSR018 | 3.2 [1-LB] 145 m |
| SIGSR316 | 4.8 [1-LB] 97.5 m |
| SIGSR325 | 4.8 X 7.6 m |
| SIGSR350 | 4.8 X 15.2 m |
| SIGSR450 | 6.4 X 15.2 m |
| SIGSR825 | 3.2 X 7.6 m |
| SIGSR850 | 3.2 X 15.2 m |