I had to replace the regulator that's part of the alternator on my GSXR 1052 project ( https://www.thegsresources.com/_foru...-GS-1000-frame)
The part ordered from Rick's motorsport was slightly out of spec and given that I live in France it was not very convenient to send it back for inspection.
Not to worry, Rick's motorsport sent me a new item almost immediately and the bike now runs fine with no concern about overcharging the battery.
Highly recommended vendor for sure!