3 ms·
This Ultra-Efficient Bike Has No Chains and No Derailleurs
- syntaxing 8y agoI wonder how susceptible this is to wear. The main advantage of sprockets and chains is that they can take some beating before failing. The cam (?) plate has to take some wear pretty quickly since it does not seem to be hardened.
- dang 8y agohttps://news.ycombinator.com/item?id=17494226 https://news.ycombinator.com/item?id=17494226