Performance Manufacturing Inc. PM-77MC-6.75 Carbon Fiber Mini Gear Guard - 6.75" (40-53T) - Universal Karting

Shield your 40 to 53-tooth sprockets from track debris and chain derailments with the PMI PM-77MC-6.75 Carbon Fiber Mini Gear Guard Set, a mandatory drive-line defense system for your go kart. Engineered for high-RPM racing, this 6.75-inch guard delivers maximum impact absorption while minimizing rotational mass. Built from aerospace-grade carbon fiber, it ensures your engine's power translates directly into forward momentum rather than overcoming heavy, clunky drive-line components.

Integrating with the Parts of a Wheel Hub Assembly

A reliable drive-line is only as strong as its weakest link. This carbon fiber guard bolts seamlessly to your PMI mini gear hubs, complementing the critical parts of a wheel hub assembly. By maintaining a clean, debris-free sprocket area, you reduce the risk of chain bind and premature wear on your bearings and axle components. Whether you are running a high-output engine with a tuned walbro carburetor or a standard spec motor, keeping your rotational weight low and your chain tension optimal is the key to finishing endurance races without a mechanical DNF. The precision engineering of this guard ensures that your chain remains perfectly aligned, reducing friction and maximizing top-end speed on the straights.

Engineered for Durability Alongside Top Tire Brands

Just as you rely on top tire brands to keep your chassis glued to the asphalt, you need a gear guard that withstands the brutal realities of competitive racing. Carbon fiber flexes under stress without cracking, meaning a harsh ride over the rumble strips will not leave your sprocket exposed. This comprehensive 4-piece set includes guards for both sides of the sprocket hub, complete with pre-installed spacers for rapid gear changes in the pits. When fractions of a second dictate the podium, having reliable, lightweight protection gives you the ultimate competitive edge.

• Aerospace-Grade Carbon Fiber: Delivers superior impact absorption and flexes under extreme stress without shattering.
• Ultra-Low Rotational Mass: Shaves critical grams off your drive-line for faster acceleration and sharper throttle response.
• Complete 4-Piece Set: Includes inner and outer guards with pre-installed spacers for rapid, hassle-free gear changes.
• Precision Fitment: Specifically designed for 6.75-inch profiles, perfectly shielding 40 to 53-tooth mini gears.
• Weather & Debris Resistance: Stands up to rain, dust, UV exposure, and flying track debris during intense pack racing.
• Universal Hub Compatibility: Bolts directly to PMI 4-hole mini hubs, integrating flawlessly with your existing setup.
• Enhanced Chain Retention: Keeps your chain aligned and protected, reducing the risk of costly derailments.

Do not let a stray rock or a harsh curb strike end your weekend early. By upgrading to the PMI Carbon Fiber Gear Guard, you are investing in the reliability and durability required to run at the front of the pack. Focus on hitting your apexes and let your equipment handle the abuse.

Frequently Asked Questions

Q: Will this gear guard fit my sprocket size?

A: This 6.75-inch guard is specifically engineered to fit mini gears ranging from 40 to 53 teeth. Please verify your sprocket tooth count before installation to ensure proper coverage.

Q: Does this set include everything needed for installation?

A: Yes, this is a complete 4-piece set. It includes both inner and outer guards and comes with pre-installed spacers to facilitate rapid gear changes in the pits.

Q: Is this guard compatible with all kart hubs?

A: This guard is designed for universal karting applications and bolts directly to standard PMI 4-hole mini gear hubs.

Q: Why should I choose carbon fiber over aluminum guards?

A: Carbon fiber offers a superior strength-to-weight ratio. It provides excellent impact absorption and flexes under stress without cracking or shattering, all while significantly reducing rotational mass compared to heavier metal alternatives.

Q: How does a gear guard help with kart performance?

A: Beyond protecting your chain from debris and derailments, this guard helps maintain optimal chain alignment. By reducing friction and lowering rotational weight, it allows your engine to transfer power to the track more efficiently, improving acceleration and top-end speed.