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What should I do if the footrest came loose or detached?

This usually happens if the locking clip is not fully secured or if the clip is damaged. What to checkTurn the footrest over and inspect the clip on the bottom. If the clip is intact, the footrest may have detached during use. Align it with the slot on the support post and press it straight back into place. If the clip is broken or deformed, the footrest may not stay...

What should I do if the footrest adjustment knob won't tighten?