Triumph Norton BSA etc Standard 18-inch X 3.75/4.00/4.25-inch Inner Tube (1) PN# 37-0187 TBS-37-0187

DUE TO PAST PERFORMANCE AND THEIR HIGH QUALITY WE USE ONLY BIKEMASTER INNER TUBES IN OUR SHOP. THIS BIKEMASTER TUBE WILL FIT 3.75/4.00/4.25″ X 18″ TIRES ONLY. 

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