Steam engine powered bicycle.
https://diqn32j8nouaz.cloudfront.net...ed_bicycle.jpg
Previously:
https://www.homemadetools.net/forum/...167#post121073
https://www.homemadetools.net/forum/...718#post108237
https://www.homemadetools.net/forum/...646#post104908
https://www.homemadetools.net/forum/...8421#post87491
https://www.homemadetools.net/forum/...834#post119274
https://www.homemadetools.net/forum/...638#post118121
