https://youtu.be/Kr7u9hgUKJs
GCN실험결과: 로드와 평속차 2km/h
https://youtu.be/v9OGNqHRw5k
https://cycletraveloverload.com/gravel-bike-vs-drop-bar-mountain-bike/
GCN실험결과: 로드와 평속차 2km/h
https://youtu.be/v9OGNqHRw5k
https://cycletraveloverload.com/gravel-bike-vs-drop-bar-mountain-bike/
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