The Zipp butyl road inner tube with a removable core is designed to improve rotational stability by decreasing rotational mass at the valve body. It features a lightweight aluminium Presta-valve body, 37mm length with a removable valve core.
Tubes are 700c x 28-32mm, weighing 96g without a valve extender. The aluminium valve body saves weight, allowing to make a tube that is 0.85mm thick to optimize durability.
• Dimension: 700c x 28-32mm
• Valve type: Presta
• Valve length: 37mm