2020 Limited Rules

BODY & CONTROLS
Add Foam (skid plate, brake pedal, under fenders, etc.)YesYes
Air FilterYesYes
Air Filter ScreenNoYes
Air Intake BootNoYes
AirboxNoYes
Airbox Vent TubesNoYes
Clutch or Brake Lever PerchYesYes
Clutch or Brake LeversYesYes
FootpegsYesYes
Frame GuardsYesYes
Gas Tank Thermal CoverYesYes
Graphic Kits & Number Plate BackgroundsYesYes
Gripper TapeYesYes
Hand Guards (metal guards or wrap around “bark busters”)NoNo
Hand Guards (open-ended plastic guards only)YesYes
Holeshot Devices (fork design and linkage design)YesYes
Plastic – Front Fender (may be vented)YesYes
Plastic – Front Number Plate (may be vented)YesYes
Plastic – Rear FenderYesYes
Plastic – Side Number Plates (additional airflow into homologated airbox/cover design is not permitted)
YesYes
Plastic – Radiator Shrouds (additional airflow into homologated airbox/cover design is not permitted)
YesYes
Plastic – Airbox Covers/Lids (additional airflow into homologated airbox/cover design is not permitted)
YesYes
(ex. Yamaha “Powerflow” kit shroud and airbox cover design is NOT legal for Limited classes)
Radiator BracesYesYes
Radiator GuardsYesYes
Seat CoverYesYes
Seat Foam (adding or removing foam)YesYes
Shift LeverYesYes
Skid/Glide PlateYesYes
Steering StabilizerYesYes
Throttle TubeYesYes
Brake LinesYesYes
Brake CaliperNoYes
Brake Master Cylinders (aftermarket brake reservoir caps/clevis are permitted)NoYes
Brake LinesYesYes
Brake PadsYesYes
Brake PedalYesYes
Brake Rotors (must maintain homologated thickness/diameter)YesYes
Brake Snake (rear brake pedal)YesYes
ENGINE & ELECTRONICS
Adjustable Fuel ScrewYesYes
Adjustable Leak JetNoYes
Anodized Oil Drain/Filler Plugs (cosmetic only)YesYes
CarburetorNoYes
Carburetor Float BowlNoYes
Carburetor JettingYesYes
Clutch Plates (must maintain shape, design, and material)YesYes
Counter Shaft Covers (may be removed)YesYes
EFI Throttle BodyNoYes
ElectronicsNoYes
Engine – Crankshaft StrokeNoYes
Engine – Cylinder BoreNoYes
Engine – Cylinder Bore re-platingNoYes
Engine – Internal Engine Modification
(including engine blueprinting/crank balancing)NoYes
Engine Clutch CoverNoYes
Engine Ignition CoverYesYes
Exhaust Control Valve (ECV)NoYes
Exhaust Muffler tips to accommodate spark arrestorsYesYes
Exhaust System (complete system, header, pipe, muffler, and silencer)NoYes
In-Line Water CoolersYesYes
Intake SpacerNoYes
Oil CoolersYesYes
Oil Injection Systems (must function as designed)NoYes
Piston – High Compression PistonsNoYes
Piston (must maintain homologated shape, design, and material)YesYes
Piston Rings (must maintain shape, design, and material)YesYes
Power Valve Actuator Hose KitYesYes
Radiator (may be oversized)YesYes
Radiator Fan (add)NoYes
Radiator HosesYesYes
Reed Valve AssemblyNoYes
Reed ValvesNoYes
Water Pump Assembly (including impeller)NoYes
Yamaha PW50 Start/Run/Off Switch (must be fully operational)NoYes
FRAME
Frame (material may be added for strength)NoYes
Subframe (material may be added for strength)NoYes
DRIVE TRAIN
ChainYesYes
Chain Guides & SlidersYesYes
Chain RollersYesYes
SprocketsYesYes
SUSPENSION
Fork Air Bleeder (aftermarket)YesYes
Fork and Shock Springs (commercially available part only)YesYes
Fork BraceNoYes
Fork CapsNoYes
Internal Suspension ModificationsYesYes
Shock Linkage (commercially available part only)YesYes
SwingarmNoYes
Triple Clamp – Lower & Steering StemNoYes
Triple Clamp – Upper & Bar MountsYesYes
WHEELS & AXLES
AxleNoYes
HubsNoYes
Rim (must remain homologated dimensions)YesYes
Rim Locks (change, add, or remove)YesYes
SpokesYesYes

NO Maintain stock OEM equipment
YES May be replaced by aftermarket or modified

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