MTB S-Tubo Ultra Lightweight Bike Inner Tube | Lightest Tubolito Mountain Bicycle Tube | Perfect Spare to Tubeless System |27.5" and 29", for 1.8" to 2.5" Standard Tires
Amazon.com : Tubolito S-Tubo MTB 27.5" x 1.8-2.5" Tube - 42mm Presta Valve, Disc Brake Only : Sports & Outdoors