you will get a little more juice off of the X1 along with a better tune over stock, but worth the extra cost I am not so sure. IMO unless you have a UART motor it is all splitting hairs. Get what makes you happy and learn to live with it
Many of us who got the CANBUS M620 have invested in a UART version and sell the CANBUS version for a total extra cost of about $500 ($1000 new kit minus selling the old one). Because the X-1 is tied to your motor and you cannot reprogram it yourself, I consider it just as locked out as the CANBUS and not really worth my time/effort unless I go above the 1500w/160nm range. I have no need to do that, that is what real motorcycles are for.
If they sell you a bike with a UART motor (non-X-1) then I would say get the stock motor and save your money. There are plenty of ways to tune a UART motor to fit your needs. If you have no plans to go higher wattage/nm than default, then the UART + custom tuning you can do yourself is about the same as the X-1, probably even better unless you really like the X-1 tunes. It all comes down to how much you want to fiddle with things.... I personally like to tinker.
Archon X1 Introducing a breakthrough in mid-drive motor technology. Watt Wagons launches the Archon X1 controller for the Bafang Ultra. Developed in Germany, the Archon X1 pushes the Bafang Ultra to a world beating performance standard. Upgrade Today! 2 Year WarrantyOn the controller only Up to...
wattwagons.com