ROLON-ADV 390-CHAIN SPROCKET KIT
- “Heat treated and hand finished to perfection” suggests that the sprocket has undergone a heat treatment process to improve its strength and durability, and has been hand-finished to ensure a flawless surface and precise measurements.
- “Every sprocket goes through 18 production stages and 15 individual quality control checks before it is ready to leave the manufacturing facility” indicate that the product went through a thorough process of production and quality control checks, as well as inspections before releasing it to market.
