I built a Santana and a Cannondale etandem with the same new Crystalyte kits. Hard to find Crystalyte cruise control included. We love the results, but don't need 2. In San Diego.
Details here: https://sandiego.craigslist.org/ssd/bik/d/bonita-electric-tandem-ebike/7588074272.html
Details here: https://sandiego.craigslist.org/ssd/bik/d/bonita-electric-tandem-ebike/7588074272.html