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SBC-04 Chainring
  • SBC-04 Chainring
  • SBC-04 Chainring
  • SBC-04 Chainring
  • SBC-04 Chainring
SBC-04 Chainring

SBC-04 Chainring
Product Details

Crafted from a specially formulated 7075 high-strength aluminum alloy, this chainring features a hard anodized finish that resists texture changes and preserves its vibrant color even after three years of direct sunlight. It uses PH-14 ultra-high strength stainless steel bolts for enhanced durability. The topology-optimized design delivers an outstanding strength-to-weight ratio. Each unit undergoes comprehensive X-ray flaw detection, with inspection records accessible on the official website to ensure maximum safety and reliability.

Choose from 30t, 32t, 34t, 36t, 38t in multiple color finishes. Supporting BCD104, SRAM 3-Bolt, and SRAM 3-Bolt DM specifications.
Tech Specifications

Main Material Custom High-Strength 7075 Aluminum Alloy

Property Standard 7075-T6 Customized 7075
Hardness (HB) 150 HB 180 HB
Tensile Strength (MPa) 550 MPa 580 MPa
Yield Strength (MPa) 450 MPa 480 MPa
Elongation (%) 10% 14%
Fatigue Strength (MPa) 160 MPa 185 MPa

Surface Treatment Hard Anodizing With the specially tuned 7075 material, our product supports multi-color dyeing during the anodizing process. The surface is clean and texture-free, and offers higher hardness, wear resistance, color durability, and corrosion resistance compared to similar products.

Property Hard Anodizing Standard Anodizing
Oxide Layer Thickness (μm) 38-45 μm 10-25 μm
Surface Hardness (HV) HV 550-600 HV 200-400
Sand Abrasion Test (Volume Loss mm³) 1-5 mm³ 20-40 mm³

Screw Material 17-4PH Stainless Steel with PVD Coating PH-14 high-strength stainless steel with PVD coating.

Property 17-4PH Stainless Steel Chromoly Steel
Tensile Strength (MPa) 930-1310 MPa 800-1000 MPa
Hardness (HRC) 40 HRC 30 HRC
Elongation (@ 620°C) 16% 12%
Corrosion Resistance Excellent, no coating needed Requires surface treatment

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