Razor E200 and E300 Flared Headset Bearings for Versions 1 and up Razor E200/E300 Flared Headset Bearings for Versions 1 and up. **NOTE: Scooter versions can be determined by locating your bar code ID on the bottom of the scooter. The 7th and 8th digit in the series will tell you the version of your product: 01=version 1; 02=version 2; 09=version 9, and so on. Thread Size: 26 threads per inch Inner Diameter (nut): 28mm