Originally Posted by Cratecruncher

I think I figured this out. Bianchigirll was correct. This is a proprietary component but for their sister company called "Dutch ID". Hence, the logo is DiD but with the first "D" backward facing (surely designed that way to confuse just me!) They no longer make recumbents moving on to more lucrative niches like E-bikes. It appears the Optima brand was so closely associated with recumbents they abandoned it. Here is the Dutch ID website link if anyone is interested: Dutch ID Bikes