Vittoria Air-Liner Light Tubeless Insert - Gravel 650b x 42-50 CheckoutSpec= Lite Red Roller 1

Red Roller 1

With its 64cm length and 100% rubber wheels

On new snow provides a good grip at around -6°C

Fits on post mount native sizes 140

}Pirelli Scorpion Enduro R Tire - 29 x 2

Vittoria Air-Liner Light Tubeless Insert - Gravel 650b x 42-50 CheckoutSpec= Lite Red Roller 1Vittoria Air Liner Light Tubeless Insert Gravel 650b x 42 50. The Air Liner Light is an ultra fast and light weight tire insert intended for the performance rider or anyone looking to improve the reliability and performance attributes of their ride. Improved grip at lower pressure with greater tire stability Lowered risk of tire burping and the upside of run flat make this the leader in performance tire inserts