2020 Limited Rules

BODY & CONTROLS
Add Foam (skid plate, brake pedal, under fenders, etc.) Yes Yes
Air Filter Yes Yes
Air Filter Screen No Yes
Air Intake Boot No Yes
Airbox No Yes
Airbox Vent Tubes No Yes
Clutch or Brake Lever Perch Yes Yes
Clutch or Brake Levers Yes Yes
Footpegs Yes Yes
Frame Guards Yes Yes
Gas Tank Thermal Cover Yes Yes
Graphic Kits & Number Plate Backgrounds Yes Yes
Gripper Tape Yes Yes
Hand Guards (metal guards or wrap around “bark busters”) No No
Hand Guards (open ended plastic guards only) Yes Yes
Holeshot Devices (fork design and linkage design) Yes Yes
Plastic – Front Fender (may be vented) Yes Yes
Plastic – Front Number Plate (may be vented) Yes Yes
Plastic – Rear Fender Yes Yes
Plastic – Side Number Plates (additional airflow into homologated airbox/cover design is not permitted)
Yes Yes
Plastic – Radiator Shrouds (additional airflow into homologated airbox/cover design is not permitted)
Yes Yes
Plastic – Airbox Covers/Lids (additional airflow into homologated airbox/cover design is not permitted)
Yes Yes
(ex.Yamaha “Powerflow” kit shroud and airbox cover design is NOT legal for Limited classes)
Radiator Braces Yes Yes
Radiator Guards Yes Yes
Seat Cover Yes Yes
Seat Foam (adding or removing foam) Yes Yes
Shift Lever Yes Yes
Skid/Glide Plate Yes Yes
Steering Stabilizer Yes Yes
Throttle Tube Yes Yes
Brake Lines Yes Yes
Brake Caliper No Yes
Brake Master Cylinders (aftermarket brake reservoir caps/clevis are permitted) No Yes
Brake Lines Yes Yes
Brake Pads Yes Yes
Brake Pedal Yes Yes
Brake Rotors (must maintain homologated thickness/diameter) Yes Yes
Brake Snake (rear brake pedal) Yes Yes
ENGINE & ELECTRONICS
Adjustable Fuel Screw Yes Yes
Adjustable Leak Jet No Yes
Anodized Oil Drain/Filler Plugs (cosmetic only) Yes Yes
Carburetor No Yes
Carburetor Float Bowl No Yes
Carburetor Jetting Yes Yes
Clutch Plates (must maintain shape, design, and material) Yes Yes
Counter Shaft Covers (may be removed) Yes Yes
EFI Throttle Body No Yes
Electronics No Yes
Engine – Crankshaft Stroke No Yes
Engine – Cylinder Bore No Yes
Engine – Cylinder Bore re-plating No Yes
Engine – Internal Engine Modification
(including engine blue printing/crank balancing) No Yes
Engine Clutch Cover No Yes
Engine Ignition Cover Yes Yes
Exhaust Control Valve (ECV) No Yes
Exhaust Muffler tips to accommodate spark arrestors Yes Yes
Exhaust System (complete system, header, pipe, muffler, and silencer) No Yes
In-Line Water Coolers Yes Yes
Intake Spacer No Yes
Oil Coolers Yes Yes
Oil Injection Systems (must function as designed) No Yes
Piston – High Compression Pistons No Yes
Piston (must maintain homologated shape, design, and material) Yes Yes
Piston Rings (must maintain shape, design, and material) Yes Yes
Power Valve Actuator Hose Kit Yes Yes
Radiator (may be oversized) Yes Yes
Radiator Fan (add) No Yes
Radiator Hoses Yes Yes
Reed Valve Assembly No Yes
Reed Valves No Yes
Water Pump Assembly (including impeller) No Yes
Yamaha PW50 Start/Run/Off Switch (must be fully operational) No Yes
FRAME
Frame (material may be added for strength) No Yes
Subframe (material may be added for strength) No Yes
DRIVE TRAIN
Chain Yes Yes
Chain Guides & Sliders Yes Yes
Chain Rollers Yes Yes
Sprockets Yes Yes
SUSPENSION
Fork Air Bleeder (aftermarket) Yes Yes
Fork and Shock Springs (commercially available part only) Yes Yes
Fork Brace No Yes
Fork Caps No Yes
Internal Suspension Modifications Yes Yes
Shock Linkage (commercially available part only) Yes Yes
Swingarm No Yes
Triple Clamp – Lower & Steering Stem No Yes
Triple Clamp – Upper & Bar Mounts Yes Yes
WHEELS & AXLES
Axle No Yes
Hubs No Yes
Rim (must remain homologated dimensions) Yes Yes
Rim Locks (change, add, or remove) Yes Yes
Spokes Yes Yes

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

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