This is for 1 valve only. They are handed and you'd need a pair for the outside and a standard pair like these on the inside.
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Speedo Cable For Kawasaki KR1S KR1S (KR250B2)
Kawasaki KR1s 250 1988 - 1993 56.44mm O/S Top End Rebuild Kit WOSSNER Piston x2
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Kawasaki KR1S Kips Valve Wheels And Linkage SET
Motorbike Cylinder Kit For KAWASAKI For NINJA 250 Z250 For Versys-X 250 62mm 250CC EX250 Ninja 250 2013-2024 ABS Motorcycle Cylinder Kit Piston Kit