Performance Engineering & Manufacturing Premium Quick Change Gears Set 21A — 10 Spline Steel Gear Set

SKU: GSDD_65021A
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Precision Engineered Quick Change GearsUnlock superior drivetrain performance with the ...Read More

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

Precision Engineered Quick Change Gears

Unlock superior drivetrain performance with the Performance Engineering & Manufacturing (PEM) Premium Quick Change Gear Set 21A. Designed for competitive racing environments, this gear set provides the exact ratio adjustments needed to dominate the track. Crafted from high-grade, durable steel, these gears are built to withstand high-torque applications while maintaining smooth power transfer.

Technical Specifications

  • Set Number: 21A
  • Spline Count: 10 Spline
  • 4.11 Ring & Pinion Ratio: 6.32 / 2.69
  • 4.86 Ring & Pinion Ratio: 7.45 / 3.17
  • Material: High-Strength Heat-Treated Steel
  • Compatibility: Standard Quick Change Rear Ends

Whether you are fine-tuning your vehicle for a short track or a high-speed circuit, the PEM 21A gear set offers the reliability and consistency required by professional racers. The 10-spline design ensures a secure fit, reducing vibration and wear during intense heat cycles. These gears are engineered for rapid installation, allowing you to adapt your gear ratios quickly between heats to optimize your vehicle's acceleration and top-end speed. By choosing premium steel components, you ensure long-lasting durability and peak performance under the most demanding racing conditions. Trust GGCRACING for all your high-performance drivetrain needs and gear ratio requirements.

Product Details

Product Description
Part Numbers
Sizing & Fit

Precision Engineered Quick Change Gears

Unlock superior drivetrain performance with the Performance Engineering & Manufacturing (PEM) Premium Quick Change Gear Set 21A. Designed for competitive racing environments, this gear set provides the exact ratio adjustments needed to dominate the track. Crafted from high-grade, durable steel, these gears are built to withstand high-torque applications while maintaining smooth power transfer.

Technical Specifications

  • Set Number: 21A
  • Spline Count: 10 Spline
  • 4.11 Ring & Pinion Ratio: 6.32 / 2.69
  • 4.86 Ring & Pinion Ratio: 7.45 / 3.17
  • Material: High-Strength Heat-Treated Steel
  • Compatibility: Standard Quick Change Rear Ends

Whether you are fine-tuning your vehicle for a short track or a high-speed circuit, the PEM 21A gear set offers the reliability and consistency required by professional racers. The 10-spline design ensures a secure fit, reducing vibration and wear during intense heat cycles. These gears are engineered for rapid installation, allowing you to adapt your gear ratios quickly between heats to optimize your vehicle's acceleration and top-end speed. By choosing premium steel components, you ensure long-lasting durability and peak performance under the most demanding racing conditions. Trust GGCRACING for all your high-performance drivetrain needs and gear ratio requirements.

Product Details

Product Description

Precision Engineered Quick Change Gears

Unlock superior drivetrain performance with the Performance Engineering & Manufacturing (PEM) Premium Quick Change Gear Set 21A. Designed for competitive racing environments, this gear set provides the exact ratio adjustments needed to dominate the track. Crafted from high-grade, durable steel, these gears are built to withstand high-torque applications while maintaining smooth power transfer.

Technical Specifications

  • Set Number: 21A
  • Spline Count: 10 Spline
  • 4.11 Ring & Pinion Ratio: 6.32 / 2.69
  • 4.86 Ring & Pinion Ratio: 7.45 / 3.17
  • Material: High-Strength Heat-Treated Steel
  • Compatibility: Standard Quick Change Rear Ends

Whether you are fine-tuning your vehicle for a short track or a high-speed circuit, the PEM 21A gear set offers the reliability and consistency required by professional racers. The 10-spline design ensures a secure fit, reducing vibration and wear during intense heat cycles. These gears are engineered for rapid installation, allowing you to adapt your gear ratios quickly between heats to optimize your vehicle's acceleration and top-end speed. By choosing premium steel components, you ensure long-lasting durability and peak performance under the most demanding racing conditions. Trust GGCRACING for all your high-performance drivetrain needs and gear ratio requirements.

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