U.S. Bike Industry worth 4.2 Billion
This article in the Bicycle Retailer contains lots of interesting statistics about the bicycle industry.
In 2001 - 19.4 million bikes were sold (est.)
95% of the bicycles sold in the US are imports (imagine the effects of a trade war)
Only 3 major bike manufacturers produce bikes in the US - Cannondale, Trek and the American Bicycle Group
The average speciality road bike cost $1,180 (National Bicycle Dealers Association)