Hi, I am a R&D engineer at Dahon ( shenzhen ) developing a small chian drive system for our small wheel folding bikes. I understand that Shimano once marketed a 10 mm small pitch chain but stopped due to unknown reasons. Do you know were I can get more information why they stopped ?
I appreciated any help from you
Many Thanks
Corbin zhang
em:
globalviewonvc@hotmail.com
Shenzhen
Dahon
China