@walnutwalrus to BicyclingEnglish • 1 year agoRetractable Sail Could Give Bikes A Boost Of Wind Powernewatlas.comexternal-linkmessage-square5arrow-up110arrow-down11cross-posted to: technologygeneral
arrow-up19arrow-down1external-linkRetractable Sail Could Give Bikes A Boost Of Wind Powernewatlas.com@walnutwalrus to BicyclingEnglish • 1 year agomessage-square5cross-posted to: technologygeneral
This is from 2019!!!