A lot of the early BMX pioneers would modify their Sting-Ray, to ensure that it to far more resemble motocross bikes, producing them a lot more apt to manage Dust classes that provided jumps together with other obstacles. CS (Chainstay) – Positions the rear wheel relative to the general frame. https://vintagebmx24328.blogofoto.com/62086958/old-school-bmx-for-dummies