Tubes aren't universal. It may share a throttle tube with another bike, but none we know of with certainty. You may not be looking for an upgrade, but our quick turns are a huge step forward... G2 Quick Turn Throttle Z125 ? MNNTHBXMy Z took a little tumble and the throttle tube is chipped on the outside. I don't need to replace it but if I were to, are the throttle tube's on these little bikes and different from other bikes? Could I grab one for nearly any other bike?