alrighty this is probably a question asked a thousand times but... i just got a set of 26" schwinn s7 rims that i need to get tires for... well question is that i have heard you can't just use regular 26" tires for these right? you have to get schwinn sized tires, or am i wrong??? :roll: i would like to get all white tires for these but if you have to get schwinn sizes that probably means my options are down to just a few.