Both Presta and Dunlop valves can be converted by simply swapping the valve core. There is also an adapter for Schrader valves that screws onto the top of the existing valve – this allows you to ...

Our example is the Craftsman 47089 compression test kit using the 14mm long reach adapter with the Schrader valve removed. See All 14 Photos The Summit Racing cam we are using has 0.625/0.605 lift ...

[Seth] decided to find out by putting four valves on a single rim. The contenders include the aforementioned Presta, as well as Schrader, Dunlop and the young gun, Clik. Schrader and Dunlop both ...