Cycling / Bicycle

🛑 Bicycle Braking System Components

Thin disc rotors with vented/spider webs, precision-machined piston inserts, hollow banjo bolts with sealing washers, multi-position adapters

Design Principles

Material: Grade 5 (Ti-6Al-4V) offers high shear strength for rotor bolts, ultra-low thermal conductivity (7 W/mK vs 105 for Al) to insulate brake fluid — critical for preventing brake fade on long descents. Cal

Form: Plate stock for rotor machining. Bar stock for bolts, piston inserts, banjo fittings, and bleed screws. SLM 3D printing for flat-mount brake adapters with optimized topology. All bolts: forged + threa

Engineering Trends

  • Process: CNC machining of rotor profile/brake track
  • Process: Precision turning of caliper piston Ti-inserts
  • Process: Hot forging + thread rolling of all rotor & caliper bolts

Standards Reference

Standards: ASTM B348 Grade 5, rolled threads (DIN 13-1 / ISO 965-2, 6g), T25 Torx, 100% MPI + 6g ring gauge + pressure tested, PVD coated per ISO 27874 (1.5um), ASTM F86 passivated

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