Exhaust oversize valve seat for repairing damaged cylinder heads. Original is 33mm (20021201)
34mm suits 30mm exhaust valve for 470, 501, 550, 650. 2001-2003
1mm oversize valve seat ready to replace the original damaged valve seat.
We can also fit these as well for you, please email for details. For 400 version, please see our part number 101195.