Pirelli SporTUBE - 48mm - 27.5 Inch - Presta - 2.1-2.4 Inch YGroup_7047491289133 Inner sleeve/endcap: Nylon

Inner sleeve/endcap: Nylon

This is a perfect upgrade and/or replacement cassette for 11-speed drivetrains

Don't think that means you're not getting quality product though

Cons: If it's really cold you might need a base layer or longer sleeves

moisture-wicking

Pirelli SporTUBE - 48mm - 27.5 Inch - Presta - 2.1-2.4 Inch YGroup_7047491289133 Inner sleeve/endcap: NylonThe SporTUBE is the most classic cycling inner butyl tube range, the standard interpretation of the most used air retention system in the worldA complete range with the size and specification for every kind of cyclist and discipline, from road cycling to urban commuting. MODEL SIZE WEIGHT VALVE TYPE VALVE COLOUR MATERIAL COMPATIBILITY SporTUBE 27. 5" x 2. 1 2. 4 200g Presta, 48mm Silver Buty1 Disc and rim brakes