2011 Bonneville Off-Road UTV Class Definition and Rules
UTV Sportsman Stock Class Under 750 cc
Class Notes
Maximum engine size 750cc
All UTV’s in this class must have originally come from the factory with 4 wheel drive and a bed. Two seats positioned side by side are required. Seating for more is allowed.
Maximum occupants are one driver and one passenger.
Competition Regulations
This is a sportsman class and may/will run less miles in a race then other pro UTV classes.
Safety Equipment
4 point harnesses is required for all occupants. 5 point harnesses are highly recommended for your
safety.
Full factory Roll Cage
ABC type fire extinguisher on board (1)2.5lbs external min
First aid kit on board
Side doors or nets are not required but highly recommended for your safety.
If UTV was equipped with side nets or doors from the factory they must be in place.
All occupants must wear full protective clothing to include at least a SNELL approved helmet, goggles, gloves. All other clothing must provide full coverage.
Suspension Components
Suspension parts may be strengthened, reinforced, or replaced but must remain OEM or OEM
Replacement parts.
Pivot points must remain in stock location.
Mounting points may be strengthened. Ball joints and bushings are open to any manufacture.
Shock location must remain in stock location.
Wheelbase must remain stock.
Aftermarket Shock Absorbers may be used as long as they mount to stock locations.
Bolt on Suspension kits may be used as long as the mount in factory locations including shocks.
Wheels and Tires
Maximum tire size is 28â€.
Aftermarket wheels of any backspacing may be used.
Wheel spacers are not permitted unless equipped from the factory. (Yamaha Rhino Rear)
Lights
Factory tail and brake lights must function.
Engine, Transmission and Driveline
Maximum engine size of 750cc
Engine must remain stock other then aftermarket ignition system and aftermarket exhaust will be allowed.
Transmission and differential gear must remain stock
Clutch is open to new springs and weights only.
Steering and Brake Components
Power steering is not allowed unless it came from the factory.
Power or vacuum assist brakes are not allowed
UTV Modified B Class Under 850 cc
Class Notes
All UTV’s in this class must have originally come from the factory with 4 wheel drive and a bed Two seats positioned side by side are required. Seating for more is allowed. Maximum occupants are one driver and one passenger unless it came with a more seats factory (a.i. Razor 4)
Competition Regulations
This is a modified class and all items will be open unless it says otherwise in these class rules.
Safety Equipment
4 point harnesses is required for all occupants. 5 point harnesses are highly recommended for your
safety.
4 wheel drive does not have to operate
Full factory Roll Cage
ABC type fire extinguisher on board (1)2.5 lbs ABC
First aid kit on board
Side doors are required.
Window nets are required.
All occupants must wear full protective clothing to include at least a SNELL approved helmet, goggles,
gloves. All other clothing must provide full coverage.
Suspension Components
Pivot points must remain in stock location.
Track width may not be increased by more than 8†per side for a total of 16†wider than stock. This is
measured at the wheel mounting surface. Or may not exceed 75†total track width.
Wheelbase may not be increased by more than 2†per axle for a total of 4†longer then stock.
Only one shock per wheel is allowed.
No external bypass shocks
No secondary suspension allowed.
Wheels and Tires
Maximum tire size is 28â€
Wheel spacers are not permitted
Lights
Must have tail and brake lights
Engine, Transmission and Driveline
Maximum engine size of 850cc
Motor must be of same manufacture as UTV
Must use stock center cases
No turbo or superchargers allowed
The only motor swap allowed is Brute Force 750cc or Rotax 800cc
Steering and Brake Components
Power steering is not allowed unless it came from the factory stock.
Power or vacuum assist brakes are not allowed
UTV A Open class Under 1300cc
Competition Regulations
This is an open class and all items will be open unless it says otherwise in these class rules. This class is for mini buggy and big cc SxS and full race SxS.
Safety Equipment
5 point harnesses are required for all occupants.
Full Race Roll Cage or Modified full factory cage to tech inspectors approval
ABC type fire extinguisher on board
First aid kit on board
Side doors are required
Window nets are required
All occupants must wear full protective clothing to include at least a SNELL approved helmet, goggles,
gloves. All other clothing must provide full coverage
Frame
Custom Frames are allowed as long as the BOR inspector deems it safe
Suspension Components
Front and rear suspension must be independent.
Only one shock per wheel is allowed.
No secondary suspension allowed.
Maximum Track Width 75â€
Maximum Wheelbase 95â€
Wheels and Tires
Maximum tire size is 30â€
Lights
Must have tail and brake lights
Engine, Transmission and Driveline
No turbo or superchargers allowed
Engine must originally have come from a UTV, ATV, Snowmobile, On or Off-road motorcycle
Automotive car and truck engines are not allowed unless it came stock from factory.
Two Cycle engines are not allowed. Maximum engine size 1300cc
Reverse not required
Steering and Brake Components
Power steering is not allowed unless factory installed
Power or vacuum assist brakes are not allowed
Must have Front Brakes
Must have minimum one rear brake. (Single driveline brake is allowed.)
Fuel System
Safety fuel cells are not required but very highly recommended.
If it is deemed at any time to be unsafe because of speed, more safety will be required to protect the occupants. This includes fire suits, fuel cells and full race cage.
At any time a vehicle is deemed to dominate it can and will be limited by air intake restrictor plate or by any means determined by BOR.