Also, we set it at the lowest level and then we just use the gears of the bike to increase the resistance. The Crocband style does run a little smaller than the classic style Crocs. They are a little slippery but got used it. Got a great surprise when they arrived as I didn?t know they were light up also. He said the size is just right and they are very comfortable. On my truck its a constant power so I can use the USB with the ignition off if I choose. Update: I brought a nut driver and put the bike rack up. Heck, the overall blend of lows/mids/highs along with the general sense of extreme detail and clarity pretty much make me want to use these, nothing else, and just forget about the rest. Im 30 with sensitive skin prone to eczema. Tennis season goes into late October so it looks like we will be purchasing a new bag.