Cast iron weight plates set 4×5 kg, 31 mm bore, classic disc, Rebel

Set of four cast iron weight plates, each weighing 5 kg, with a 31 mm central bore designed for use on standard barbells and dumbbell handles. The classic disc profile provides a compact footprint and stable seating on the sleeve, offering reliable resistance for strength training sessions at home or in commercial settings. The neutral finish and simple markings make these plates suitable for progressive loading, circuit work, and pairing with other standard 31 mm-bore plates.

Advantages

These cast iron plates deliver a dense, durable feel and consistent weight tolerance across the set, enabling predictable load progression. Their 31 mm bore fits common standard bars and many adjustable dumbbell handles, simplifying plate changes and storage. The classic disc shape reduces excess bulk on the bar and helps maintain balance during lifts, while the robust material resists chipping and wear under normal gym use.

Suitable for

• Home strength training with standard 31 mm-barbells and adjustable dumbbells
• Incremental loading when building up to heavier lifts
• Accessory lifts, supersets, and circuit workouts
• Gyms or training spaces requiring compact, durable plates

When it may not be suitable

These plates are intended for standard 31 mm sleeve diameters and will not fit Olympic bars or plates with larger 50 mm sleeves. They are cast iron discs without rubber or bumper protection, so they are not designed for repeated dropping from overhead or heavy impact on hard floors. If silent or floor-protecting plates are required, consider rubber-coated or bumper-style alternatives.

Key specifications

• Plate weight: 5 kg each
• Quantity: set of 4 plates
• Bore diameter: 31 mm (standard)
• Material: cast iron
• Shape: classic disc

How to use

Slide the plates onto a compatible 31 mm-diameter bar or handle, position them evenly on both sides to maintain balance, and secure with suitable collars or clamps before lifting. For progressive loading, add plates in matched pairs to keep the bar stable. Store plates vertically on a rack or flat on a sturdy surface to prevent damage and allow easy access. Clean with a dry cloth and apply light oil if needed to reduce surface rust over time.

What to consider before purchase

• Confirm your bar or handle uses a 31 mm sleeve diameter
• Decide if cast iron discs suit your training style versus rubber-coated or bumper plates
• Ensure you have collars or clamps compatible with your bar for safe lifting
• Plan storage space for a set of four 5 kg plates

Usage recommendations

Use these plates for controlled lifts, multiplying small increments to work up to heavier loads. Avoid dropping them from overhead; when used on hard floors, pair with rubber mats to protect the surface. Regularly inspect for surface rust and treat as needed to maintain longevity.