KICS (Project Kics): Japanese Precision and Ultimate Lightweight Wheel Hardware
Wheel fasteners are a critical interface where chassis loads meet the rims. The Japanese brand KICS (Project Kics), a division of KYO-EI Industrial Corp., approaches lug nuts and spacers as high-performance engineered units. Instead of heavy mild steel, KICS utilizes Forged SCM435 Chromoly and A7075-T6 Duralumin, significantly reducing unsprung mass and enhancing reliability during intense heat cycles.
ATOMIC-SHOP Ukraine is the official KICS supplier. We offer authentic Japanese hardware for those building uncompromising JDM projects or seeking perfect wheel fitment for BMW and Audi models on Ukrainian roads and at the Chaika Autodrome.
KICS Material Science: Why Weight Matters?
Upgrading to lightweight lug nuts is the simplest way to reduce rotating mass. For instance, the LEGGDURA RACING series weighs only 22 grams per nut—50% less than standard factory hardware.
- Forged SCM435 Chromoly: Used in R40 and MONOLITH series. This ultra-high-strength steel withstands repeated impact wrench use without thread fatigue.
- A7075-T6 Duralumin: An aerospace alloy with steel-like strength at aluminum's weight, primarily used in lightweight nut series and decorative caps.
- Swivel Seat Technology: A free-spinning conical seat that allows for maximum clamping force without marring the wheel’s finish or altering torque specs under thermal expansion.
Comparative Table: OEM Hardware vs. KICS Performance Series
| Parameter | OEM Lug Nuts (Stock) | KICS Performance Series |
|---|---|---|
| Material | Mild Steel (Heavy) | Forged SCM435 / A7075-T6 |
| Kit Weight | ~1.1 kg | ~0.5 kg (50% Weight Savings) |
| Wheel Surface Protection | Contact friction (scratches) | Swivel Seat Technology |
| Security | Basic or None | Heptagon (7-sided) / Bull Lock TUSKEY |
FAQ: ATOMIC-SHOP Technical Expertise on KICS
Can LEGGDURA aluminum nuts be used on the track?
Yes, the LEGGDURA RACING series is made from forged A7075-T6 duralumin designed for high loads. However, for professional motorsport requiring frequent wheel changes, we recommend the R40 or MONOLITH steel series for superior thread durability.
Are KICS nuts compatible with small lug hole wheels?
The MONOLITH series was specifically designed for this. Since the key is inserted internally, the outer diameter remains slim, preventing wheel finish damage during installation.