Selecting the right bicycle parts requires a deep understanding of the end-user's needs. For performance-oriented segments (Road/MTM), prioritize lightweight materials like Carbon Fiber (T700/T800) or 7000-series Aluminum Alloy. For commuter or utility segments, focus on durability and weather resistance, ensuring components have anti-corrosion coatings. Always verify that the technical specifications (e.g., bottom bracket standards, axle spacing, and speeds) are compatible with mainstream frames to avoid inventory deadstock.