Brake Parts
Cooling Parts
Drivetrain & Transmission Parts
Electrical Parts
Engines Parts
Exhaust Parts
Foot Controls & Pegs
Frame & Body
Fuel Parts
Handlebars & Controls
Ignition System Parts
Mounts & Hardware
Performance Chips & Programmers
Racing Exterior & Body Parts
Starting & Charging Parts
Suspension Parts
Windshield & Fairings
Repair Manuals
From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high-RPM performance. Built to outperform and outlast in real-world competition.
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).
CLOSE ✕
Subscribe to our newsletter to receive exclusive offers, product recommendations, expert tips and more.