5 lb Lead Puck Ballast Weight

Add precise, reliable ballast wherever you need it with this 5-pound lead puck. Solid, compact, and easy to mount — ideal for chassis, quarter-midget, kart, and open-wheel applications.

Key Features

• Weight: 5 lb (approximate) for clean, consistent mass addition

• Dimensions: Approximately 3.5 inches in diameter and 1.375 inches tall

• Pre-drilled 1/2-inch mounting hole for fast, secure attachment

• Lead construction delivers high density in a compact form
  

• Warning: Contains lead. Item is subject to California Prop 65

Why This Ballast Puck Works
This compact 5-lb lead puck allows you to fine-tune weight distribution, meet minimum-weight requirements, and adjust handling balance. Its small size makes it easy to position exactly where you need it without occupying valuable chassis space. The integrated mounting hole ensures a secure, professional installation.

Usage and Installation Tips

• Select mounting locations based on desired weight transfer

• Use proper racing-grade hardware to attach through the 1/2-inch hole

• Re-weigh the vehicle after installation to confirm rule compliance

• Inspect regularly for deformation and verify mount integrity before events

Specifications

• Weight: ~5 lb

• Diameter: ~3.5 in

• Height: ~1.375 in

• Mounting Hole: 0.5 in

• Material: Lead

Compliance Notes
Check your racing class rules for ballast mounting specifications, tagging requirements, or inspection procedures. Lead ballast must often be securely attached and clearly marked.

Nascar Youth Series / USAC rules state:

Ballast cannot be mounted any higher than 7” above the bottom of lower frame rail. No ballast can be mounted to the body panels. Ballast can be mounted in the left side kick out but must be bolted to a metal kick out floor pan, a tab or a frame upright. Ballast in the kick out cannot be mounted to the side of the body panel or to a fiberglass floor. The kick out floor pan must be attached to the chassis with tabs, bolts or rivets, in order to attach any ballast. ALL weights attached through metal belly pans shall be secured with a min., 1.5” fender washer and bolts so that the bolt heads will not pull through the belly pans. Two (2) bolts are required if ballast is 6” or larger in length or width

Ideal For
Quarter-midget racers, karting teams, open-wheel builders, and performance shops needing a dense, compact ballast solution.