Located in “Motocross City, USA” Marysville, CA, MMX Racing is a 20 acre facility situated right next to the scenic Yuba River. With multiple tracks to choose from, including our Main Track, Sand Track, Vintage Track, Kids Track or the Dirt Oval, one of them is sure to satisfy. Our tracks are a mixture of sand and loam with terrain for everyone. Track Hotline 530 419 5200