This is a category entirely created by consumers that would not have been created by the mainstream bike market because they couldn't see the need, the opportunity; they didn't have the incentive to innovate.
マウンテンバイクは消費者が発明したわけです 自転車業界の主流では このビジネスチャンスは見えなかったし 新しい製品を発明する動機も