I am new to Beta bikes and struggled to find the information I was searching for so I put together this spreadsheet to help get all of the information in one place. I only focused on the 300RR model but It's easy to add a separate page for other models. You can add information to it, I try and save a copy every week in case things don't go right. Hopefully it helps you and if you have any tips to improve I'm all ears I've posted this elsewhere and received quite a bit of good information.
https://docs.google.com/spreadsheets/d/ ... p=drivesdk
I tried to simplify the cross references to 1-2 more popular bikes vs 100 different models and years.