Facts: A mountain bike manufacturer M sells a bicycle that is intended for use on unpaved terrain. Buyer K is using it on a mountain trail when the pedal comes loose due to faulty assembly. K falls, suffers serious head injuries, and the bicycle is damaged. K was not wearing a helmet, even though the instructions expressly recommend doing so. A helmet would have prevented or significantly mitigated the injuries. K’s injuries (pain and suffering, treatment costs) and the damage to the bike are considered compensable damages.

Question: What claims does K have against M?