Project Kics RL53 Leggdura Racing Shell Type Lug Nuts
The Project Kics Leggdura Racing RL53 shell-type lug nuts combine precision Japanese engineering with innovative two-piece construction for the ultimate blend of strength, style, and security. Manufactured by KYO-EI Industrial Corporation, these premium lug nuts are designed for enthusiasts who demand both performance and aesthetics.
Two-Piece Shell Design
These lug nuts feature a unique dual-component construction with a forged chromoly SCM435 alloy steel core surrounded by an anodized duralumin aluminum outer shell. The removable shell design allows you to hand-remove the decorative outer piece before bringing your vehicle to a shop, preventing scratches and preserving the finish. The included ABS plastic adapter tool (19mm hex) makes shell removal simple and damage-free.
Superior Strength and Lightweight Performance
Each lug nut weighs just 47 grams while maintaining exceptional strength through its chromoly steel core. The 53mm total length provides optimal thread engagement for secure wheel mounting. The duralumin material is the same lightweight alloy used extensively in motorsport applications, offering an ideal strength-to-weight ratio.
Enhanced Security Features
Every set includes locking lug nuts (4 locks per 20-piece set, one per wheel) with a steel key adapter for theft deterrence. The specialized lock pattern and two-piece construction make these among the most difficult lug nuts to remove without the proper tools.
Kit Contents
- 16 standard lug nuts
- 4 locking lug nuts (one per wheel)
- 17mm hex key adapter
- 21mm unisex hex key adapter
- 19mm ABS plastic shell removal tool
- Steel lock key
Specifications
- Total Length: 53mm
- Weight: 47g per nut
- Material: Chromoly SCM435 steel core with anodized duralumin shell
- Style: RL53 open-end look
- Seat Type: Tapered (60-degree conical seat)
- Installation Hex: 17mm and 21mm
Important Note: These lug nuts feature a tapered conical seat and are specifically designed for aftermarket wheels. They are not compatible with factory wheels that require a ball seat or flat washer design. Always verify your wheel's lug seat type before ordering.
Project Kics products are manufactured in Japan and meet or exceed JWL and VIA standards, with ISO, NAPAC, and JAB certifications ensuring the highest quality control standards in the industry.