Originally Posted by merlinextraligh

Replace timing chain with a belt. Saves about 10 ounces of weight; increased longevity; doesn’t require re tensioning over time, keeps one side of the bike clean, does not require lubrication or cleaning, is arguably more,efficient, and creates a more connected feel between stoker and captain.

And I believe with the new Veer system, you have the ability to find different sized tandems.