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 the 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!