2017+ GSX-R1000 Heavy Duty Valve Spring Set 

Set includes 16 Inner and 16 Outer Springs

Max Valve Lift = .466" or 11.8mm

*** Important Note - The Damper Coils (coils with the reduced pitch) must be position towards the engine block / spring seat and away from the valve retainer, to reduce the active mass of the spring. If the parts are incorrectly orientated, they will not operate correctly. Incorrect assembly could be detrimental to performance and could result in early component failure.