Sound Test Data

Find a legal muffler for your OHV

Sound Test Data for most manufacturers

Sound Testing Data from the California State Parks Off-Highway Motor Vehicle Recreation Division.

Cambridge Sprint Enduro Minnesota 300 Adventure Ride Mora Enduro TT Trollhaugen Hare Scrambles

Cambridge Sprint Enduro

We are excited to offer the first Sprint Enduro in District 23! Simply put, Sprint Enduro is individual off-road motorcycle racing, against the clock. May 7, 2017!

TWO ISDE STYLE SPECIAL TESTS
ONE CENTRAL START / FINISH AREA
NO CONFUSING TIME KEEPING
LOWEST TOTAL TIME WINS

Picture grass track combined with some great trails, and you holding it wide open for 6-10 minutes trying to do a lap as quick as possible. This is an Enduro, so you're racing against the clock, not head-to-head against other riders.

Minnesota 300 Adventure Ride

The Minnesota 300 is a two day adventure ride through the Walker/Leech Lake area in northern Minnesota September 30 & October 1, 2017. The route consists of two loops, each approximately 150 miles each. The loops begin and end at the Norther Lights Casino and utilize many forest roads, snowmobile and ATV trails in the area.

On-line REGISTRATION CLOSES 9/16/2017 or when 100 riders have registered.

Mora Enduro

The Norsemen Motorcycle Club has been sponsoring the Mora Enduro in the Snake River State Forest for over 50 years! This Enduro is the only time you can ride the trails in this forest, don't miss it! June 18, 2017 for the Main Enduro and a Family Enduro June 17, 2017 paying Youth Cross Country Series points.

Cambridge TT

The Norsemen MC is proud to host 2 TT events at our property in Cambridge, MN. Mark your calendar June 17 and June 18, 2017. A TT is a similar type of race to Dirt Track, but differs from a regular flat track event by including a right turn and a jump. The goal is simple, be the first rider to the checked flag on the last lap!

Trollhaugen Hare Scrambles

This Hare Scrambles is held at the Trollhaugen Outdoor Recreation Area in Dresser, WI. The course includes a woods course and  moto track. Don't miss out on the fun July 16, 2017!

Trollhaugen Memorial Race Track in Dresser, WI will be rocked for this legendary, once a year spectacle! The infamous Area 51 will give riders thrills and chills as they try to conquer the hills at the Troll. Four races for riders of every age, size and ability.

Cambridge Hare Scrambles Minnesota 300 Adventure Ride Mora Enduro TT Flat Track Trollhaugen Hare Scrambles
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Over 55 years sponsoring quality events
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Sound Testing Data

The California State Parks Off-Highway Motor Vehicle Recreation Division has been testing sound emissions of motorcycles and ATV's for about a year. This information can be used to help enthusiasts find a muffler for their OHV that will comply with sound emission's standards. Only tests with a reading of 101 dBA or less less are included. The list is by make, model and year of the OHV tested.

Select the manufacturer of your OHV to link to the list for that manufacturer

ATK CZ Kawasaki Thunder
BBR E-Ton KTM TM
Bombardier Gas Gas LEM VOR
BSA Honda Maico Yamaha
Bultaco Husaberg Polaris
Cannondale Husqvarna Suzuki

This list is not intended to be an endorsement of any product, nor does it guarantee compliance if installed on your off-highway vehicle.

Not all mufflers will work the same on all OHV's. Since results vary with modifications, along with vehicle care and maintenance, there is no guarantee these mufflers will work on your particular OHV.

**Remember, the noise limits are not just enforced during events, there are laws in place now for riding on both private and public lands. Check the laws at the State and County levels before you ride.

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