Changes from the 3.4 to the 4.0 7-speed. Bike is due first week of Feb.
From Propella....
"Hello Propella fans,
We’re excited to announce Version 4.0!
In this new version we have equipped our award winning e-bike with some upgrades including:
New multi-purpose CST tires with puncture protection technology
4th generation re-engineered battery pack with improvements in mechanical design
New compact charger"