The term "involute ... teeth. This undercut is necessary to avoid interference with the teeth from the other gear during rotation. Note that the yellow rack tooth is deep into the undercut space.

Shimano CUES components have been available for flat bar bikes, electric bikes and mountain bikes for a couple of years now, but Shimano’s announcement of a new set of components finally extends CUES ...

The latter is a carbon bar with ergonomics in mind, with a subtle 4º flare, light back sweep and down sweep on the tops, and ...

HIAS, formerly the Hebrew Immigrant Aid Society, saw its mission and fortunes shift after Trump slashed refugee resettlement during his first term. WASHINGTON — When Mark Hetfield started work ...