Identifying your Razor Model, Version, Year
To identify which actual model, Version, or year of your Razor Electric Ride On, you will need to locate the Barcode/Serial Number Label on the Toy. It will look like this:

The top row will show Model (in this case RSF650), and Date of Manufacture (Dec. 14, 2017)
If you look at actual serial #: 10R610-01-17120001991 - the middle #'s (-01) show the Version. In this case Version 1 (01). then the next set of numbers (-17120001991) the first two digits show the year (2017)
When ordering parts for Razor toys you will need to know the exact model and version prior to ordering.
The Full structuring of the Serial # is as follows:
10R610-01-17120001991 (example)
First 2 digits (10R610-01-17120001991) = Factory
Digits 3&4 (10R610-01-17120001991) = Model
Digits 5&6 (10R610-01-17120001991) = Color
Digits 7&8 (10R610-01-17120001991) = Version
Digits 9&10 (10R610-01-17120001991) = Year of Manufacture
Digits 11&12 (10R610-01-17120001991) = Month of Manufacture
Keep in mind that the majority of this information is for Razor/Service Center use. The main thing you need is Version, model, and possibly date of manufacture.