Polaris RZR 170 or Polaris ACE 150.

Last Updated March 20, 2024

DEFINITION

Polaris RZR 170 or Polaris ACE 150. Driver must be at least five (5) years old. Maximum age is twelve (12) years old.

GENERAL REGULATIONS

Entrants in this class shall comply with all applicable general regulations.

TECHNICAL REGULATIONS

This class is a stock production class, and all components must remain stock except for those modifications allowed herein. Manufactures body, engine, transmission, chassis, and drive train components must be retained.

NOTE: The UTR abbreviations listed under this class (I.E. UTR1 HELMETS) refer to UTR cross reference listings in the front of this book. These UTR cross-referenced listings are part of the class rules. Where a conflict occurs between the UTR cross-referenced listing and a rule contained under this class, the rule contained under this class takes priority.

SAFETY EQUIPMENT

UTR1 HELMETS

UTR2 PROTECTIVE CLOTHING

SFI-A5 rated fire suit is required. No karting suits.

UTR3 EYE PROTECTION and DENTURES

UTR4 HEAD AND NECK RESTRAINTS

SUSPENSION COMPONENTS

Stock suspension points must be retained.

A-arms and rear trailing arms are open.

Maximum front and rear track width is 53.5 inches outside of tire to outside of tire at dies height.

Maximum wheelbase is 68.5 inches measured at ride height.

Minimum ride height is 6 inches.

Stock spindles must be used.

Front and rear hubs may be of any manufacturer.

UTR11 SHOCK ABSORBERS and BUMP STOPS

Must retain stock shock mounting locations

UTR12 SECONDARY SUSPENSION

UTR13 WHEELS and TIRES

UTR14 FASTENERS

STEERING and BRAKE COMPONENTS

UTR15 STEERING

Tie rods are open.

UTR16 BRAKES

Front brakes may be removed. Brake caliper and disc are open. Mounting and location are open.

ELECTRICAL SYSTEM

UTR17 IGNITION

UTR18 BATTERIES

UTR20 STARTERS

FUEL SYSTEM

UTR21 FUEL

UTR22 FUEL TANKS

UTR23 FUEL FILLERS LINES, VENTS, and CAPS

ENGINE, TRANSMISSION and DRIVELINES

UTR24 ENGINE and ENGINE DISPLACEMENT

Polaris RZR 170cc engine or Polaris ACE 150 engine mandatory.

Engines must remain stock as delivered by the manufacturer.

Clutch is open.

ECU must remain stock.

Intake must remain stock as delivered.

Air cleaner box must be retained, lid may be removed.

Air Cleaner is open as long as it fits in the stock air cleaner box.

Fuel tuners allowed.

UTR25 ENGINE REPLACEMENT

UTR26 TRANSMISSION

Transmission case may be reinforced.

UTR27 THROTTLES

UTR28 EXHAUST

Open.

UTR29 DRIVE SHAFTS

Rear axle is open. Maximum width must be maintained.

UTR31 FLUID COOLERS

VEHICLE SAFETY EQUIPMENT

UTR34 ROLL CAGES

Aftermarket roll cage required. No stock cages.

UTR35 SAFETY HARNESS

UTR36 SAFETY NETS

UTR37 SEATING

Driver’s seat must remain in stock location plus or minus two (2) inches.

GENERAL VEHICLE COMPONENTS

UTR38 DRIVERS COMPARTMENT

UTR39 DOORS AND LATCHES

UTR40 FIREWALLS

UTR41 BALLAST

UTR42 WEIGHT

Minimum weight is 650 pounds, including driver.

UTR43 FLOORBOARDS

UTR44 BUMPERS and HAZARDOUS PROTRUSIONS

UTR45 MIRRORS

UTR46 SKID PLATES

UTR47 STORAGE

UTR48 CHASSIS and BODY

Roof panel required. Must be minimum of .060 thick metal.

UTR49 HOSES

UTR50 IDENTIFICATION MARKINGS

Race numbers required on both sides and rear of vehicle. black numbers on a white background only. Minimum six (6) inch tall numbers.

Unlimited Off-Road Racing will assign race numbers.

UTR51 ADVERTISING on VEHICLES

UTR52 RADIO EQUIPMENT

UTR53 WORKMANSHIP

UTR54 TRACKING DEVICE