HOME/CUSTOM OPTIONS/CENTER CAP ARCHITECTURES
CUSTOM CENTER CAPS IN ANY STYLE

Bespoke Forged Center Cap Architectures

Customize your center caps in aluminum, plastic, or carbon fiber, with any style, logo, or design you desire. Precision-engineered for a secure fit, lasting durability, and premium performance.

MATERIAL BASE

Aluminum or Plastic

Customized to Your Specifications

HUB SEALING

Dual Viton O-Ring

Hermetic Moisture Barrier

SPEED RATING

320+ km/h

High-G Dynamic Balance

RETENTION CHOICE

3 Locking Systems

Thread, Friction & Set Screw

CAP ARCHITECTURE #BILLET-MONOBLOCKPRECISION BILLET

Billet Monoblock Cap

Ultra-Flush Aerodynamic Profile · Matched Grain Finishes

Carved from monolithic billets of aerospace-grade 6061-T6 aluminum on multi-axis CNC machining centers. Features an ultra-tight radial seal profile engineered with perimeter Viton fluorocarbon O-rings that prevent moisture, road salt, and corrosive brake dust ingress while delivering an uninterrupted flush line across the wheel center.

ENGINEERING APPLICATION NOTE

Optimal Fitment Scope: Trackday Monoblock builds, clean minimalist street builds, and high-performance exotics.

SPECIFICATIONSCAD VERIFIED
MaterialSolid Aerospace 6061-T6 Billet Aluminum
Machining Tolerance±0.02 mm CNC lathe & milling tolerance
Retention InterfaceDual Viton O-Ring or Concealed Thread-On
Surface FinishesHand-Brushed, Mirror Polish, Ceramic Powder, Two-Tone Diamond Cut

KEY TECHNICAL ADVANTAGES

Monolithic 6061-T6 billet construction eliminates plastic degradation and fading

Perimeter Viton fluorocarbon O-ring prevents thermal expansion seizing and wheel hub rust

Surface finish 100% hand-matched to wheel face grain, candy tints, or high-luster polish

Optional CNC 3D bas-relief logo milling or two-tone diamond-cut accent borders

RETENTION & VIBRATION SECURITY

Three Positive Locking Retention Systems

A center cap must resist lateral G-forces, heat soak from 400°C brake rotors, and violent track kerb vibration. We engineer 3 distinct retention interfaces tailored to your wheel architecture and driving demands.

MECHANISM 01

Thread-On Billet Collar with Spanner Key

Thread-On 螺纹旋合防盗盖

A precision machine-threaded center bore system where the outer bezel screws directly into the wheel hub using an M68 or M72 thread pitch.

›Mechanical positive lock that cannot vibrate loose under extreme track kerb impacts
›Dedicated billet spanner key tool included with every set for secure anti-theft protection
›Integrated perimeter O-ring creates a hermetic seal against rainwater and hub corrosion
›Available with center-lock race aesthetic styling including simulated drive pins
Recommended Application:Track day monoblocks, high-downforce GT cars, and center-lock look packages.
MECHANISM 02

Viton Double O-Ring Mechanical Friction Fit

Viton 双密封圈挤压嵌合

Dual radial Viton fluorocarbon O-rings seated in precision CNC-undercut grooves provide consistent mechanical friction retention.

›Viton elastomer withstands -40°C to +200°C temperatures without hardening or embrittlement
›Zero rattles, zero metal-on-metal vibration squeaks, and tool-less push-to-seat installation
›Calibrated insertion force (250–350 N) prevents accidental pop-out over high-speed road dips
›Can be extracted cleanly from the rear during routine tire dismounting
Recommended Application:Street forged wheels, daily driven performance sedans, and luxury SUVs.
MECHANISM 03

Concealed Hex Grub Screw Retention

内六角隐藏顶丝固定

High-tensile stainless steel M4 or M5 socket set screws positioned behind the cap flange mechanically lock into matching radial indents.

›100% positive anti-theft and anti-loss lock that makes unauthorized removal impossible from front
›Hidden from the exterior viewing plane for an immaculate, seamless aesthetic
›Ideal for extreme centrifugal velocities exceeding 300 km/h where friction fits are insufficient
›Supplied with magnetic ball-end hex driver for effortless wheel rotation maintenance
Recommended Application:High-horsepower drag setups, unlimited Autobahn speed runs, and bespoke show builds.
PRECISION TOLERANCE & DETAILING

Milled with Micron Precision on 5-Axis CNC

Unlike mass-produced plastic or stamped metal caps that crack under thermal cycles, every BOYAO center cap is turned from aerospace-grade 6061-T6 bar stock. Each piece is hand-inspected under optical coordinate comparators to guarantee seamless flush integration with your custom forged wheel centers.

±0.02 MM

Bore Runout Clearance

100% BILLET

Zero Cast or Molded Plastic

BESPOKE BRANDING & EMBLEM SERVICE

Commission Custom Logo Center Caps

Have a proprietary automotive emblem, private-label wheel brand logo, or bespoke monogram? Submit your vector artwork (DXF, AI, STEP) for precision 3D bas-relief engraving and tailored anodized color matching.