Arts & Culture Home / Arts For 20 years, the Oakland production duo has helped define the sound of Bay Area rap — and they're not done yet. Jul 8, 2026 Updated 5:52 pm PT The Mekanix, 4rax and Kenny Tweed (L–R), take a break outside their East Oakland studio. (Pendarvis Harshaw) The computer screen displays photos of rap luminaries. On a nearby wall hang news articles, vinyl records and memorabilia from the likes of Shock G and Tupac Shakur.