The inaugural stop of the Muscle Milk TWMX Race Series’ Northern California expansion was a smashing success. Hundreds of racers lined up at 408MX in San Jose to take part in the newest racing organization to the area and after a day full of motos, we could not wait to get back to NorCal. Luckily, the time is now as we are currently in the process of packing up the trucks and heading to MMX Racing in Marysville, California.

Located right next to the Yuba River, the track is made of prime river bottom soil, a mixture of sand and loam, that will turn into a number of lines for racers to choose from. The MMX crew has built a number of safe, yet challenging jumps to test a rider’s skill and the wide track allows for even better racing. With all of these features, it is bound to become a favorite stop of racers on the circuit.

Series sponsor Bell will be on hand with their premier helmet, the Moto-9, available for demo and Yamaha will have a selection of bikes and generators on display as well. Muscle Milk’s team will be out in full force to pass out samples of their award-winning drink.

Looking to get some time in on the track? You are in lucky, because MMX will be prep each track before raceday.  The track will be open and prepared on Saturday from 9AM to 2PM and overnight camping is available.

Sunday begins with gates opening at 6:30AM, registration taking place from 6:30 to 8AM, and practice kicking off at 8AM. First moto racing will begin soon after the final practice session is complete.

Want to race? You have two entry methods that will get you in, but we are rather partial to one. Traditional raceday sign-up is available, with cash and now credit card as payment, but you can enter early through our online registration area and use the PayPal option. Payment via PayPal and increased odds at a better first moto gate selection make signing up on the web a viable option, along with this week's online entry prize, courtesy of Muscle Milk. Early entry closes Thursday, April 25th, at 11:55PM.

The New Era Muscle Milk TWMX Race Series snapbacks have arrived! SoCal racers will receive red and black lids, while NorCal racers will be given the grey and black hats.


Muscle Milk TWMX Race Series Northern California Spring Cup Schedule 

March 30th – 408MX | San Jose, California

April 28th – MMX | Marysville, California

May 11th – Club Moto | Livermore, California

June 8th and 9th – 408MX | San Jose, California

About Muscle Milk TWMX Race Series
Owned and operated by TransWorld Motocross, this race series runs annually and consists of four, 6-race series (Winter Cup, Spring Cup, Summer Cup, and Fall Cup) totaling 24 races, all of which include riders of varying ages and ranges of experience from beginner to pro levels. The series title sponsor is Muscle Milk. Associate sponsors include: Bell Helmets, BTO Sports, and One Industries. Affiliate sponsors include: Asterisk, BRAKING, EKS Brand, Leatt, Metal Mulisha, Maxxis Tires, New Era Caps, ODI, Race Awards, Works Connection, etnies, MTA, Yamaha, FMF Racing, Kal-Gard. Racing classes include PeeWee, Minis, 250s, 450s, Girls/Women, 25+ and Vet. Go online to for more information about the Muscle Milk TWMX Race Series.

Series Sponsors
Muscle Milk
BTO Sports
One Industries
EKS Brand
New Era
Metal Mulisha
Works Connection
Maxxis Tires
Race Awards

About TransWorld Motocross
TransWorld Motocross is the largest motocross media outlet in the world, delivering comprehensive lifestyle coverage to an audience of new and experienced motocross enthusiasts about their favorite sport. Found online at Motocross is published by TransWorld Media, the world's leading action sports media company. TransWorld is a division of the Bonnier Corporation. Bonnier Corporation ( is one of the largest consumer-publishing groups in America and the leading media company serving passionate, highly engaged audiences through 50 special-interest magazines and related multimedia projects and events. Bonnier Corp. is the US division of the Bonnier Group (, a 200-year-old family-owned media group based in Sweden with business operations in 25 countries.

About Muscle Milk
Muscle Milk® Ready-to-Drink is a protein-enhanced functional beverage that promotes workout recovery, lean muscle growth, and sustained energy. Muscle Milk takes the guesswork out of high performance nutrition, delivering a precise blend of premium proteins, complex carbohydrates, functional fats, vitamins & minerals. CytoSportTM, the maker of Muscle Milk®, is among the largest sport nutrition protein beverage companies in the U.S. and offers a complete line of protein-enhanced powders, shakes and bars. Muscle Milk® was named Ready-to-Drink Beverage of the Year by, Best Functional Beverage, and Beverage of the Year by BevNet and Company of the Year by Beverage Forum presented by Beverage Marketing Corporation and Beverage World.