Wheelie bike speedometers, windshields, hand grip streamers, headlights, taller sissy bars, axle spinners, and back rests such as shown on this bicycle: The Raleigh Chopper was the best selling children's bicycle in the UK. The wheelie bike fad drove bicycle sales to over 4 million units in the US, and accounted for 75% of total US bicycle sales in 1968, but it also helped contribute to the impression in the US that bicycles are merely children's toys. Dangerous features, such as shifters mounted on the top tube, were banned in the US in 1974. The wheelie bike fad even attracted the attention
Chopper bicycle to make their own. Arguably, a bought 'chopper' is not a 'chopper' at all, because no chopping was done—only a commercial transaction. There are various cycling groups and clubs around the world that feature chopper bicycle riders, such as the Choppercabras, Chopaderos, DHC Den Haag Cruisin', Freakbike Militia, Cranksters, SCUL, and C.h.u.n.k. 666. Such groups encourage all chopper bicycle riders to join them on rides celebrating different events and holidays. Because the frame of a chopper bicycle and a chopper motorcycle can be strikingly similar, and of a high enough quality/durability, it is relatively common to have an empty space,