Royal Enfield
- Valve Seat Insert (each)
- suit +2mm o/size Intakes
- Head Machining Required
- 1.220" / ID-.945" / H-.230"
Yamaha® YFZ™ 450 2004-2009 Yamaha® YFZ™ 450X 2008-2011 Yamaha® YFZ™ 450R 2009-2020 Yamaha® YFZ™ 450SE 2010-2020 Yamaha® WR™ 450 2003-2015 Yamaha® YZ™ 450F 2003-2009
SPRING KIT STEEL VALVE CONVERSION