The product is not stable. The joints do not fit together tightly and there is so much space between tube sizes it does not help to tighten them as much as physically possible. There was 1 tube missing that held the front and back halves together. The shifter mount swung back and forth by almost 1/2 I ch mackingnit hard to shift.. so after some redneck engineering it is usable. Not very happy. It was for my son and he is ok with it. When I buy one for myself it will NOT be this one.