The new 305 Ghost from Lyric Cycles could very well be the next best thing compared to the Onyx RCR or Onyx CTY2. I can tell you for sure the suspension is better, it's got more power, and a bigger battery... and a larger price tag, but not by much considering the specs.
https://bit.ly/Lyric-305-Ghost
CODE: JUICEDJOYRIDES ($300 off until Dec 1)