The MA21 Minikart brake clamp is a high performance component for Mini/Cadet category kart. Designed in CNC forged aluminium, it offers an excellent compromise between structural rigidity, reduced weight and optimized thermal dissipation.

Its anodized magnesium finish guarantees increased corrosion protection while maintaining a high-end technical appearance.

Certified CIK-FIA 005-B2-97, it meets official competition standards, ensuring reliability and race compliance.

This model is usually integrated into a complete MA21 hydraulic rear brake kit (reference KB280N), designed specifically for Minikart chassis.

Composition of the kit (elements visible on the diagram)

The complete system includes:

• Floating brake disc Ø150 mm – thickness 14 mm

• Brake clamp MA21 2 pistons

• Disc holder / steel disc holder

• Stainless steel hydraulic hose (about 68 cm)

• Black mini anodized brake pump

• Complete screwdriver (long screws, copper washers, M6 nuts, spacers)

• Hydraulic connections with banjo

• Chassis fastening system (rolling and reduction rings)

Configuration: single disc rear hydraulic system with floating caliper for progressive and constant braking.

Technical specifications

• Material: high strength forged aluminium

• Treatment: magnesium anodization

• Type: hydraulic caliper 2 pistons

• Disc: floating Ø150 mm – thickness 14 mm

• Approval: CIK-FIA 005-B2-97

• Application : kart Mini / Cadet

• Mounting: rear (rigid axis)

Benefits

• Excellent braking power adapted to young categories

• Optimized weight to improve overall performance

• Very good heat resistance in intensive use

• Complete system ready to mount

• Compatible with most approved Minikart chassis

Attention/limits points

• Requires regular maintenance (purging, joint control)

• Performance depends on the quality of the mounting and adjustment

Backcountry: Some users find that incorrect alignment or mounting can reduce braking efficiency. This is generally linked to the installation rather than to the product itself.

Recommended additional products

• MA21 compatible brake pads

• Repair kit (joints and pistons)

• High temperature brake fluid (DOT karting)

• Ventilated floating disc racing (performance option)

• Optimized master cylinder

A good properly sized clamp + pump assembly is essential to ensure a constant and efficient braking.

Conclusion

The MA21 Minikart is a reliable and proven solution in competition. It meets the requirements of young pilots by offering performance, safety and compliance with FIA standards. Its integration into the KB280N complete kit makes it a ready-to-use system, suitable for both training and competitive environments.