Brand new come with my NSW.
Zipp is partnering with Silca™ to offer a premium valve extender with a stylish innovative design that eliminates annoying rattle between the extender and rim valve hole.
• 24mm extender gasket removes rattle
• Machined 6066-T6 aluminum
• When installed on Zipp butyl tubes with 37mm valves, compatible with Zipp 303, 404 and 808 rims.
• Compatible with all tubes with removable valve core. Places Presta valve at top of extender for easy access for inflation.
45mm for 50-65mm rim depth including Zipp 404 – 2.7g