Spoke Architecture, Weight Relief & Caliper Clearance
Where finite element structural topology meets aggressive deep concave profiles and aerospace lightness. Engineered to shed rotational inertia while clearing oversized 6-piston and carbon-ceramic brake systems without dangerous wheel spacers.
-1.2 to -2.5 KG
Rotational Mass Slashed
≥ 3.0 mm Safety Gap
Zero Spacers Needed
4 Depth Profiles
0mm to 85mm+ Drop
100% FEA Modeled
JWL/VIA Impact Proof
High-Speed 5-Axis Spoke Milling in Real Time
Watch our simultaneous 5-axis CNC machining center carve complex spoke contours and back-pocketing pockets directly out of a solid 6061-T6 forged aluminum billet. High-pressure flood coolant carries away aluminum chips while keeping tool temperatures stabilized for flawless surface micro-finishes.
Spindle Velocity
Complex Undercut Capability
Engineering Integrity Behind Every Cut
A visually aggressive spoke design is meaningless if it flexes under cornering load or collides with your track calipers. Our engineering workflow delivers maximum weight savings without compromising structural safety.
CNC Back-Pocketing (Weight Relief Cavities)
五轴球头铣刀背部仿生掏肉减重
Utilizing 5-axis high-speed CNC machining centers and solid carbide ball-nose endmills, non-structural aluminum mass is strategically milled from the rear flanks and hub mounting pad of each spoke.
3D Concave Geometry Optimization
3D 轮廓凹度渐进拓扑优化
Rather than bending spokes arbitrarily, every BOYAO concave curve is calculated based on suspension geometry, fender lip clearances, and structural beam deflection curves.
Brembo / AP Racing / CCB Caliper Pockets
大型竞技刹车与碳陶卡钳避空槽
Eliminates the dangerous practice of using aftermarket wheel spacers. We model the complete 3D radial and axial envelope of your specific brake calipers directly into the inner spoke backface.
Explore the 4 Concave Depth Profiles
Concavity is a direct function of vehicle offset, wheel width, and brake clearance. Switch between profiles to inspect drop depths, spoke plunge angles, and target vehicle applications.
Medium Concave Profile
平衡适度立体内凹 · Spoke Angle: 5° – 8° progressive slope
The benchmark profile for front axles on wide-track sports coupes and grand tourers. Provides noticeable 3D depth and shadows across the spoke roots while maintaining ample room for OEM 6-piston Brembo or Akebono caliper packages without requiring fender modifications.
BMW M2/M3/M4 (Front), Porsche 911 Carrera (Front), Mercedes-AMG C63, Corvette C8 (Front).
Comfortable ≥4.0mm dynamic safety margin over standard 380mm–400mm sports calipers.
Precision 3D Laser Caliper Scanning
Many wheel brands force clients to install universal 5mm or 10mm wheel spacers because their spoke profiles fail to clear big brake calipers. At BOYAO, we design every spoke profile to custom order around your exact brake caliper coordinates. You receive guaranteed ≥3mm clearance with a 100% direct hub-centric bolt-on fit.
Direct Hub-Centric Bolt-On
Max Rotor Envelope Cleared
Submit Your Brake Caliper Template for CAD Review
Upgrading to an aftermarket Brembo GT, AP Racing, or carbon-ceramic brake kit? Provide your brake caliper manufacturer template or vehicle chassis model for a free 3D CAD clearance check before committing.