I drill my rims for Schrader if they don't come that way. I find Schraders to be more durable. I seem to be a real klutz when it comes to flats away from home. I've usually got the adrenaline pumping am shaky and end up bending the Presta. I carry a grommet in my bag in case I ever need to borrow a tube from somebody else that has Prestas. I can get Schrader tubes at hardware stores or Walmart anywhere in the country.