20" X 1-3/4 S7 BLACK BICYCLE TIRE & TUBE VINTAGE SCHWINN STINGRAY FIT S7 RIM.
Fits: Schwinn bikes equipped with S7 rims (Schwinn's proprietary rim size). Size: 20 x 1-3/4 (S7 size). Always check the rim size before purchasing to ensure proper fit. Provides a secure fit to the rim and long-lasting durability.