http://www.performancebike.com/shop/profile.cfm?SKU=23062&subcategory_ID=5132

I have a Diamondback response 8 speed and i want to convert it to single speed, would this kit work? Its says it works on freehub gear systems, what does that mean? Would it still work?

i dont want the weight of the cassette, thats why, plus my rear derailer is basically crap