CLOSED NOVEMBER 16 and 17 due to cold temps and rain!


Open every Saturday and Sunday from 10am-5pm to all 85cc and up bikes.  Small bikes only run on the 1st and 3rd Sundays from April through December with the exception of the 2 weekends preceding the MAMA/D13 race(s).  We do not accommodate small bikes from January through March.  The earliest small bike session is at 11:00am.  We will rotate sessions until 5pm.  The small bike class is limited to 50 and 65cc 2-stroke motocross race bikes like those made by Cobra and KTM.  Yamaha PW50s, Honda CRF50s, and similar trail bikes cannot ride at SFMX at this time.

South Fork will move to an open track format for all 85cc and up bikes until there are at least 50 large bikes at the park. We’ve discovered riders self-regulate track time and get to ride when and as much as they want. There’s actually fewer riders on the track at any given time during open track days than when we split classes. Riders will continue signing up for A/B and C/D practices but we will only split when necessary.  Obviously if there are small bikes on the 1st or 3rd Sunday of the month April through December, then we would be rotating at least a small bike class (15 mins) and a large bike class (30 mins).

Check back by 8am the morning of any practice to ensure we didn't close or delay opening

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Rates: $30 for members, $40 for non-members, $25 for a 12-month membership.  $10 Rocky Mountain reward deposited in your Rocky Mountain account each month you ride at least one day.

Signup opens at 9:15.

Free camping, free hot showers, electric $10 per night for 30 amp service and $15 for 50 amp service (no power on race weekends).

Track rental generally available Fridays and Mondays with 2 weeks advance notice.  Friday track rentals are fully groomed like weekend regular practice days.  It is $30 per rider with a $600 minimum due in advance via Paypal or credit card.  Monday track rentals are $30 per rider with a minimum of $210 due in advance via Paypal or credit card.  The track is "as is" leftover from Sumday.  Monday rentals will be canceled if Sunday is canceled.

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​​​​​​South Fork Motocross Park

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