The quality of Shimano original parts is convincing. Every part is extensively tested and checked. Shimano's internal requirements are often higher than those of industry standards and norms. This ensures safety and reliability. The segmentation into groups clearly divides the performance according to the top-down principle. This clearly defines the respective Shimano performance level. Only original Shimano parts fit perfectly with Shimano components. The optimal fit makes replacement easier and meets the highest demands in all respects.