I am wanting to put racing slick tures on my Horizon and strip it down for the summer to speed up a bit. I have been looking at 700 - 23 tyres. I take it if they have wire rims then the will go on to my wheels that came with the bike ie 700 - 35 touring tyres. Also tubes. Would I need to get smaller tubes for the 700 - 23 + spare tubes for the likely problems of having slicks?