B Xavier Disley, PhD on X: "Interestingly the Revoloop tubes (25g) become faster than the Vredestein Superlite latex tubes (53g) only once you hit a ~15% gradient. Vredestein is over twice the
VREDESTEIN Inner Tube 28" Latex Superlite | 700 x 20/25C SV 50 mm, 12,50 €
Vredestein FV Latex Inner Tube - Mantel
Tubeless is the fastest choice, yet its alternatives have their use cases – Faster Bike Blog