昭和の男の子がみんな乗ってた自転車
https://bike-news.jp/wp-content/uploads/2020/05/20200501_byc_001.jpg
https://i.pinimg.com/474x/f2/a3/cf/f2a3cfeed428da889fada15e89c601ec--tandem-bicycle.jpg
https://stat.ameba.jp/user_images/20191211/21/gifu-ryutaro/b5/23/j/o0574041714669717029.jpg
https://image.itmedia.co.jp/nl/articles/1803/27/si_supercar_bicycle-07.jpg
https://cdn-ak.f.st-hatena.com/images/fotolife/m/mono93/20170412/20170412132423.jpg

変速機もカッコイイんだよ
https://image.itmedia.co.jp/nl/articles/1803/27/si_supercar_bicycle-04.jpg
https://dattake.c.blog.ss-blog.jp/_images/blog/_0d0/dattake/E5889DE4BBA3E5A489E9809FE6A99F-37b16.jpg