Some motorcycle enthusiasts become so passionate about their hobby that they start maintaining their own bikes and eventually develop skills and knowledge comparable to those of professionals.
こんにちは！
ご質問ありがとうございます。
ご質問について、いくつか言い方が考えられますが、例えば、
Some motorcycle enthusiasts become so passionate about their hobby that they start maintaining their own bikes and eventually develop skills and knowledge comparable to those of professionals.
とすると、「バイク好きが高じて、自分で整備を始め、最終的にはプロ並みの技術や[知識を身につける](https://eikaiwa.dmm.com/uknow/questions/122956/)人も多い。」となります。
役に立ちそうな単語とフレーズ
become passionate about ～に熱中する
comparable to those of professionals プロ並みの
参考になれば幸いです。
日本 
