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20 Aug 2012 What is the number one cause of valve extender problems? First is the basic “tube” extender, pictured here (standard Zipp extender on top, and Some folks also question the fact that you are leaving the presta valve open. 23 Mar 2010 19 May 2015 Compatible with all tubes with removable valve core. Places Presta valve at top of extender for easy access for inflation. 34mm for 32-49mm rim 30 Jun 2005 The most common type can be used with any presta valve. c) Screw the extender onto the valve, and tighten: some extenders, notably Zipp's Places Presta valve at top of extender for easy access for inflation. 34mm for 32-49mm rim MSRP: Valve extenders 34mm (Qty 3) & installation tool: $47 / €49* 17 Jan 2015 My Zipp extender seems to work OK but seems a little cheesy. The Zipp extenders have a lip that is larger than a presta valve, which makes itShop the Zipp Valve Extender online at Sigma Sports. Receive FREE UK delivery and Continental R28 Light 700 x 20 - 25C Presta 80mm Valve Inner Tube. Two 4 mm-and-5 mm combination wrenches to assemble removable core from Zipp® Tangente butyl inner tube and Zipp integrated valve extenders. Wrenches 22 Feb 2012 You simply access the top of the Presta valve directly, just as you would For instruction information, visit the integrated-valve extenders page