BOYD Valve Extenders 38mm

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25% stiffer, 8% faster. It's definitely a well cut extender for deep profile rims. A nicely bevelled tip makes pump head installation easy, machined grooves keep a solid grip on th e pump and prevent air leak and a 3mm hex socket in the tip so you can tighten it down. Wrap a layer of teflon tape on the valve stem to get a leak proof seal. Black anodised with etched logos. Suitable for valves with both removable and non-removable cores. 2.9grams per valve. Fast! Show more