I think that I'll try a "700 x 35c rear 7sp cassette alloy QR" from huffy sports. i quote exactly from the page i printed out. at $35.00 plus shipping, it's worth looking at. here again, i've heard of a "fixie" which i believe has only one gear. what gear should i get, and perhaps if you look up the wheel, you could make recommendations. ps. this is a project bike. i have a miami tricycle i restored and a 26 inch mountain bike and i drive a 27 year old chevy when things don't fit on the bike. thanks for your help, David