Question: What is the maximum weight for this weight class in professional boxing for which Royal Kobayashi won the Lineal and WBC titles in 1976?
Sentence (from "Motor glider"): In the US, a powered glider may be certificated for up to two occupants, up to 850 kg maximum weight, and with a maximum ratio of weight to wing span squared of 3 kg/m.
Relevant evidence: No