Tubolito Tubo MTB Tube - 29" x 1.8-2.5" 42mm Presta Valve Orange – The Bike Hub
Tubolito S-Tubo MTB Spare Tube - Fair Wheel Bikes
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
Tubolito Inner Tube Tests | Bicycle Rolling Resistance