I am Aidan Hartley, and I have in-depth knowledge of sourcing bike parts online in SA, covering essential components like drivetrains, brakes, wheels, and suspension systems. Understanding the importance of compatibility, material quality, and performance helps in selecting the right parts for road, mountain, and hybrid bikes. Online availability provides access to a wide range of options, making it easier to compare specifications and find suitable replacements or upgrades. Factors like sizing, durability, and brand compatibility play a crucial role in ensuring optimal performance. I focus on the technical aspects of bike parts to help cyclists make informed purchasing decisions for maintenance and repairs.