What I did do was put a felt pad on the back because without bikes, the rack has a tendency to tip over backwards. I dislike this product because the stitching is already breaking and it is not even 2 months yet. Despite minimal wear, they just didn?t hold up. The SRH1540 are the best Ive heard in the range up to $500. My 1 1/2 year old son loves themthe bad thing is that they make the foot sweat, so I alternate them with other, fresher shoes. Last Christmas this 58 year old man tried a pogo stick. They were quick with reply and offered a good solution. These Klipsch T5 II True Wireless Earphones are great! Coming from a Sennheiser Officerunner headset I knew 2 things to expect 1. Easy first time set up.