Your very first ride down the steep slopes of a bona fide mountain on a rock strewn trail on an old bike will undoubtedly leave you convinced to the necessity of purchasing a strong and resilient mountain bike frame! It, as your body will attest, is going to absorb a lot of shock. If you invest in a good mountain bike frame, it will do even more: it will actually absorb, into its metal and components, much of the shock that would otherwise move readily into your own component…