(Apologies if it has already been addressed -- didn't see in a cursory search) This year, Co-Motion has changed their max-adust stoker stem material from chrome-plated chro-moly to stainless steel. http://www.co-motion.com/index.php/p...st-stoker-stem
I'd found out about the new material via the Co-Motion newsletter & had ordered one prior to our bike being shipped back from a re-paint. (GTR-ers will have to guess what we'd settled on! ) Our current m-a stem was corroding a bit under the chrome plating in a couple places.