Crank Arm Gap Due to Incorrect Spacer Configuration

For two-piece crank systems like Shimano Hollowtech II or SRAM DUB, check the manufacturer's service manual to verify the required number of spacers based on the bottom bracket shell width (e.g., 68mm vs. 73mm). An incorrect number of spacers can lead to an unintended gap or improper seating of the crankset.