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SCA-01 Crank Arm
  • SCA-01 Crank Arm
  • SCA-01 Crank Arm
  • SCA-01 Crank Arm
  • SCA-01 Crank Arm
  • SCA-01 Crank Arm
  • SCA-01 Crank Arm
  • SCA-01 Crank Arm
  • SCA-01 Crank Arm
  • SCA-01 Crank Arm
  • SCA-01 Crank Arm
SCA-01 Crank Arm

SCA-01 Crank Arm
Product Details

Crafted from specially formulated 7075 high-strength aluminum alloy, this crank arm features a hard anodized finish that preserves its vivid color and smooth texture even after three years of sun exposure. Equipped with PH-14 ultra-high strength stainless steel bolts, it boasts a topology-optimized design for an outstanding strength-to-weight balance. Each unit undergoes comprehensive X-ray flaw detection, with traceable inspection records available on the official website, ensuring uncompromised safety and reliability.

Choose from 2 different color finishes in lengths from 150mm to 175mm. Supporting EBIKE ISIS or SRAM 73DUB 3-Bolt / 8-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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