38mm is the size of the rubber intake diameter size of the air filter that connects to the carburetor..
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Main Jet for most 4-stroke carburetors are 0.75mm. This jet packs comes with a 0.91mm jet,, 0.95mm, 1.00mm jet, 0.83mm jet, 0.87mm jet, and a 0.79mm jet. This jet kit wont fit the 20mm to 26mm carburetor. It fits the 17mm, 18 mm, 19mm 4-stroke carbure
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List: $98.00
Price: $68.00
You Save: $30.00 (31 %)
THERE IS NOTHING AVAILABLE THAT COMPARES TO THE SUPERB QUALITY OF THIS NEW TIRE SET. UNMATCHED TRACTION AND GRIP ON ALL INDOOR AND OUTDOOR. INSTALLS EASIER ON RIM DUE TO SOFT COMPOSITE SIDEWALL. UNMATCHED GRIP ON WET AND DRY TRACK CONDITIONS
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4-Stroke Performance Air Filter. The large cone style, is 3 1/2 inch tall. Smaller version fits everything, the large ver. might not fit all bike frames. Please, Measure before you buy.
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List: $85.00
Price: $64.95
You Save: $20.05 (24 %)
Eliminates REV LIMITER for more usable RPM'S! Increase 4,500 RPM right off this box! Stock 5500 RPM. Increase over all performance! Fits all 50cc, 70cc, 90cc, 110cc, 125cc 4-Stroke Bikes, Choppers, Dirt Bike & ATVs
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Boost you Low End Torque or High End Speed with these Race Sprocket. Fits 50-110cc 4-Stroke bikes
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High Flow Foam Air Filter for 4-Stroke Bikes
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Race Sprockets for X7, R6 (4-Stroke) pocket bikes! Faster than ever! Increase your high end speed! Put one on Today, and feel the difference!
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High Flow 4-stroke Washable Foam Air Filter. The small air filter is about 3 1/2 inch tall, the large is about 5 inch tall.
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List: $85.00
Price: $49.95
You Save: $35.05 (41 %)
Eliminates REV LIMITER for more usable RPM'S! Increase 3,000 RPM right off this box! Stock 5500 RPM. Increase over all performance! Fits all 50cc, 70cc, 90cc 110cc Chinese 4-Stroke Bikes, Choppers, Dirt Bike & ATVs
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The aluminum screws are design to hold your body panel to the bike frame. These screws has been anodized, so the paint will last longer then standard paint jobs.
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19mm carburetor w/hand choke and wide intake manifold increases throttle response, low end torque and top end. Fits 50-110cc 4-Stroke Bikes.
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Helps to cool your motor. Easy to install, just remove your motor dip stick and screw this engine breather on.
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With this Super coil, you get more complete and faster combustion, resulting in increased horsepower and torque.
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4-Storke HP Fuel Link (4 feet)
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Extra wide Intake Manifold increases throttle response, low end torque and top end. Fits 50-100cc 4-Stroke Bikes.
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Heavy duty oil cooler keeps your engine running cooler, allows higher engine revs, prolongs engine and oil life. Includes oil lines, four 9.8mm oil bolts and cooler.
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High performance Mikuni carburetor increases throttle response, low end torque and top end. Fits 50-100cc 4-Stroke Bikes.
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