Performance Manufacturing PM-77ALW 8.5" Pro Ultralite Sprocket Guard Set - Billet Aluminum - 6-Spoke Hubs

When you are pushing your chassis to the absolute limit, optimizing your kart and parts for minimal rotating mass is the difference between a podium finish and getting left in the dust. The Performance Manufacturing PM-77ALW 8.5" Pro Ultralite Sprocket Guard Set is engineered specifically for serious racers who demand zero compromise on driveline efficiency. By utilizing aerospace-grade billet aluminum with aggressive lightening holes, this guard set drastically reduces rotational inertia, allowing your engine to spool up faster out of tight hairpins and maximize top-end velocity.

Precision-Machined Chain Guards for Maximum RPM

Heavy driveline components rob your engine of vital horsepower. Unlike standard plastic or heavy steel alternatives, these aluminum chain guards are precision-machined to offer unparalleled protection without the weight penalty. The 8.5-inch diameter provides comprehensive coverage for your sprockets, deflecting track debris, curbing impacts, and preventing chain derailment during high-G cornering. The sleek black anodized finish not only looks aggressive but also prevents corrosion from harsh track chemicals and synthetic lubricants.

Seamless Integration with Brake Clamps and 6-Spoke Hubs

Clearance and fitment are critical when setting up a race-winning rear axle. The PM-77ALW is specifically designed to mount flawlessly onto standard 6-spoke sprocket hubs. The ultra-thin profile ensures you won't have interference issues with inboard brake clamps, bearing cassettes, or chassis rails. The set comes complete with pre-installed spacers on one side, ensuring a perfectly parallel fitment that keeps your chain running true and quiet, eliminating power-robbing vibrations.

Track Safety That Rivals the Best Helmets

In the heat of a draft train, protecting your driveline is just as crucial as protecting yourself. While you rely on the best helmets to keep your head safe, you can rely on the PM-77ALW to shield your vital drivetrain components from catastrophic failure. A thrown chain at 70mph can destroy an engine case or end your weekend instantly—this guard set acts as a bulletproof vest for your rear axle.

Technical Specifications:

• Ultra-Lightweight Billet Aluminum: CNC-machined with aggressive lightening holes to shave critical rotational grams.
• 8.5-Inch Diameter: Optimized coverage for a wide range of gear ratios without excess bulk.
• 6-Spoke Hub Compatibility: Direct bolt-on fitment for standard 6-spoke racing sprocket hubs.
• Black Anodized Finish: Provides superior resistance to track debris, chain lube, and corrosion.
• Integrated Spacers: Comes with spacers pre-installed on one side for rapid, bind-free mounting.
• Complete 4-Piece Set: Includes guards for both sides of the sprocket hub for total enclosure.
• Zero Drag Design: Maintains perfect chain alignment to maximize horsepower transfer to the rear wheels.