The exclusive PTN-LUFTY lightweight aluminium valve, which has a wide angled opening to prevent clogging of the sealing material and ensure greater air flow, has been upgraded. The result is an improved "Lufty 2" valve that is compatible with most inserts on the market. The innovation lies in a more advanced design based on the following features: - All-aluminum construction - New aerospace aluminum - Reinforced valve axis - Lowered head to better seat the insert into the rim - Wider air holes to prevent milk seal clogging - Longer aluminum cap for added protection - Cap and valve head with PTN logo - Ultra lightweight at only 4g
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