front hub oil seal


Civil engineers in Rome invented the concept of underground sewer to rid their cities of plagues caused by human contact with waste. Their water sources that they used for consumption were also contaminated as they served as open sewers. The underground sewers made sure that that waste stayed out of reach of humans and was deposited by these sewers further downstream. For periodic cleaning, they also provided access ways that were covered with stone lids that we call manholes today. Incidentally, these stone access way covers are still seen in Jerash, Jordan which was a Roman city in the old days.
One of the most compelling reasons for the hoop bike's popularity is its environmental impact. As cities grapple with traffic congestion and pollution, more individuals are seeking eco-friendly transportation alternatives. The hoop bike, being a pedal-powered vehicle, produces zero emissions, contributing to cleaner air and a reduction in urban traffic woes. Moreover, its compact design enables easy maneuverability in crowded urban settings, making it an ideal choice for city cycling where swift navigation is crucial.
hoop bike
