GSX-R Fork on Yamaha XJ550 Frame Conversion Stem

This stem allows you to bolt-on a GSX-R fork to a Yamaha XJ550 frame. Simply press out the OEM GSX-R stem, and press this one in. 


  • Made from 6061-T6 aircraft grade aluminum.
  • Precision CNC machined. 
  • Will work with 1997-2019 GSXR forks
  • Fits Yamaha 
    • XJ550 Seca 81-83
    • XJ550 Maxim 81-83
  • If you need stem pressing service make sure you add it to your cart HERE.
If you do not have access to a press Cognito Moto can do the stem swap for you. Please mail us your lower triple with return address. This is an additional $20 so please be sure to select this option when adding this item to the cart. We are also offering the required bearings for GSX-R stem to Yamaha XJ550 Special frame bearings by All Balls Racing. 
  • Come with All Balls Racing Bearing Part Numbers: 99-3515-5 & 99-3515-5