Bonneville Salt Flats (former flagship sedan of the Pontiac motor division), the Triumph Bonneville motorcycle, and the Bonneville International media company are all named for the salt flats. The Bureau of Land Management (BLM) has undertaken numerous studies of the salt crust thickness within the Bonneville Salt Flats and ultimately concluded in a 2006 study that there was virtually no difference in the salt crust thickness from 1988 to 2003. Specifically, the BLM concluded “despite brine withdrawal for mineral production, neither short nor long-term measurable changes in salt crust thickness could be documented.” The BLM further concluded that earlier salt crust measurement studies
Triumph Speed Four and other minor concessions to its streetfighter style; the frame and fully adjustable suspension are race-ready. The engine is a 599 cc inline-four-cylinder engine, as used in the TT600. The bike has a top speed of and a time of 4.5 seconds. "Motorcyclist" tested the 2002 Speed Four's time at 11.65 seconds @ and time at 3.71 seconds. The Speed Four was voted No.1 for handling and suspension in "Ride" magazine's 2008 Rider Power Survey. The Triumph Daytona 675 was second in the same category. Triumph UK After Sales has confirmed that 4,606 Speed Fours were produced from 2002 through