Original or classic cyclometers measure and display distance, time and speed. The monochrome displays were visible even in bright sunlight and under low light condition. The devices could be powered by durable button cell batteries. These units have a magnet that clips onto a spoke which rotates the magnet past a sensor. They count rotations …
Gravel bikes are safety bicycles; modern, multi-use, hybrid. Sheldon Brown did not have an entry for gravel bike in the 2008 version of his Bicycle Glossary. (His blog is maintained, and the site is updated, with many modern contributions from John Allen and other friends of cycling). René Herse Cycles (formerly Compass Cycles) and Cycling …
This was 2018:
This was 2017:
This was 2016:
This is was 2015:
I managed a number of rides in 2014.