Introducing REV 0.5T Sprockets: Precision Gear Ratios for Kart Racing

Another innovation from REV Performance Materials, the 0.5T (Half-Tooth) Sprockets is something we’ve been excited about and developing for quite some time. We only decided to release it when the design was perfect. Designed for competitive racers, these sprockets give you an edge by allowing finer gear ratio adjustments without changing your front sprocket.

What Are 0.5T Sprockets?

Despite the name, these sprockets don’t actually have half a tooth. Instead, the teeth are engineered with a modified shape that spaces them slightly closer together. This lets a standard 219-pitch chain seat perfectly in each tooth valley while effectively giving you the performance of a half-tooth change.

How Do They Work?

By slightly adjusting the spacing and shape of each tooth, the sprocket changes the rolling diameter of your driven sprocket. This enables extremely precise gear ratio tuning, which can help you dial in lap times, acceleration, and overall kart handling—all without swapping the front sprocket.

Important: Due to the modified tooth shape, these sprockets are directional. Each sprocket has an arrow indicating the correct installation direction. Installing it backward can cause the chain to derail, so always ensure the sprocket is spinning in the proper direction.

Why Are They Important?

In karting, every fraction of a second counts. Standard sprocket steps can sometimes be too large for optimal performance, especially on technical tracks or in highly competitive classes. 0.5T sprockets allow you to:

• Fine-tune your gearing for track conditions

• Optimize your engine RPM and acceleration

• Improve consistency through corners and straights

The Benefits of REV 0.5T Sprockets

• Precision CNC Machined: Crafted from 7075-T6 aircraft-grade aluminum, each sprocket is machined to within 0.01mm for maximum accuracy.

• Reduced Friction & Wear: Optimized tooth design ensures the chain seats perfectly, reducing drivetrain loss and extending component life.

• More Options, Less Hassle: Make half-tooth adjustments without swapping front sprockets, giving you more flexibility for race day setup.

• Wide Size Range: Available from 69.5 to 80.5 teeth, covering nearly any karting application.

Conclusion

If you’re looking to maximize performance and gain precise control over your gear ratios, REV 0.5T Sprockets are a must-have. With their advanced design, durable materials, directional guidance, and fine-tuned fit, they give competitive racers the edge they need on every track.

Ready to fine-tune your kart? Check out our full lineup of 0.5T sprockets and elevate your performance today. Order yours today.