So if I'm reading this correctly, it should work with horizontal dropouts and that since my bike is neither fixed or single speed, it should work since multi speed needs less tension? If this is true, I do have one more question. Does the material of the frame account for any problems with the pitlock? Like does steel frame require more tension than an aluminum one? I was just wondering cause I was going to order a set for my girlfriend and her bike is a multi-speed older (1980's?) Schwinn bike.