This precision-machined aluminum pulley features a 50mm bore and 55mm outer diameter, designed to reduce water pump RPM on high-speed tracks — perfect for road racing and long circuits.
Features:
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Bore size: 50mm
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Outer diameter: 55mm
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Material: Lightweight aluminum
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Finish: Black anodized
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Ideal for high-speed and road race setups
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Helps reduce pump speed and prevent overcooling
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Slightly oversized vs axle – avoids direct mounting issues
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May be branded EMtech or New-Line – identical spec and function
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Better solution than running pump directly on axle
Reliable performance and reduced wear for serious racers.
