Reconfigure Bottom Bracket Spacers to Match Frame Shell Width

1. Identify your bottom bracket shell width (typically 68mm or 73mm) and the specific crankset model.

2. Consult the manufacturer's official technical manual to determine the required number and placement of 2.5mm or 4.5mm spacers for your specific frame standard.

3. Remove the non-drive side crank arm and extract the bottom bracket cups if necessary to access the spindle area.

4. Install the correct quantity of spacers on the drive side and non-drive side as specified for your frame's shell width.

5. Reinstall the crankset and verify that the spindle is fully seated without side-to-side play before finalizing the preload adjustment and tightening the fixing bolt.