Yamaha R6 & R1 Fork on Yamaha XS650 Frame Conversion Stem

This stem allows you to bolt-on a R6 & R1 fork to a  Yamaha XS650 frame. Simply press out the OEM R1 or R6 stem, and press this one in. 


  • Made from 6061-T6 aircraft grade aluminum.
  • Precision CNC machined. 
  • Will work with:
    •  YZF-R1 98-06
    •  YZF-R6 99-05
    •  Fits 1974-1983
  • 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 conversion stem to  Yamaha XS650 frame bearings by All Balls Racing. 
  • Come with All Balls Racing bearings part numbers: 99-3515-5 & 99-3515-5

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