Im not really sure what the deal is with presta, I think its a weight saving issue as standard schrader tubes are on the heavy side. Most down hillers and free riders use the schrader tubes because weight isnt as big an issue and the extra protection is worth while. You need a presta to schrader adapter to inflate a presta tube, you usually get one included when you buy a bicycle tire pump. keep in mind, the valve stem hole in some rims are smaller and will only accomodate the presta valve, (you’d have to drill out the hole to put a larger stem tube into it..)