David "Tinker" Juarez (born March 4, 1961) is an American former professional BMX and cross-country mountain bike racer.
His prime competitive years in BMX were from 1978 to 1984 and in mountain bike racing 1986 to the 2005.
Since late 2005, he has competed as an ultra-distance road bike racer. In all three disciplines, he has won numerous national and international competitions.
Most recently, Juarez finished third in the 2006 Race Across America Enduro bicycle road race.