Are threadless stem risers safe for tandem?
I'm considering raising the captains handlebars on my Burley above what can be accomplished with a stem change. This means a stem riser such as Delta, Dimension, or Zoom. I realize it's only one more connection of the steering mechanism., i.e, stem -riser-steerer versus just stem-steerer.
Given the increased weights and dynamics of a tandem, does anyone have any thoughts about safety or is it anymore of a concern than it would be on a single bike?
Has anyone installed or used a stem riser on a tandem?