The Yoof 20" has been designed from the ground up specifically to suit the smaller rider that's not quite bigger enough for a regular 20" BMX but not wanting to grow out of a 18". The Yoof 20" features smaller frame, bars and cranks to best fit the smaller rider. This BMX also benefits, forged 3 piece cranks, a 25t-9t gearing, a 9t cassette hub and a low standover height.