1.25" Splined Sway Bar Kit

The Karcepts ND Front Sway Bar Kit is engineered for competitive driving, offering significant enhancements to chassis tuning and performance for the 2016+ Mazda MX-5 Miata. This kit utilizes advanced design principles, including CMM technology and FEA analysis, to achieve maximum stiffness with minimal weight. The core of the kit is a splined 1.25" diameter x 0.75” gun drilled spring steel sway bar, available in 1.07", 1.13", and 1.25” diameters. Billet aluminum arms are optimized for strength and weight, while low-friction, greasable solid polymer bearings ensure smooth operation and eliminate bushing bind. The package includes heat-treated and plated steel alloy PTFE-lined endlinks and all necessary hardware for installation. A key feature is the nine possible adjustment settings, providing an enormous adjustment range and precise tunability. Adjusting the sway bar rate is a quick process, requiring only one wrench and can be performed with the vehicle on the ground, even at low ride heights. The design minimizes installation complications, particularly if the factory sway bar is cut during removal. Karcepts provides specific recommendations for center section diameter based on tire width and front camber angles, advising that greater grip necessitates more front bar stiffness. Different sway bar center section options cater to various performance needs and vehicle setups. The 1.07" bar is recommended for 205-225mm tire widths, the 1.13" bar for 235-245mm tires with -2.0 to -3.5 degrees of front camber, and the 1.25" bar for 245-255mm tires with -3.5 to -4.5 degrees of front camber. These options allow competitors to tune the chassis precisely for specific track conditions, course designs, or driving styles. Installation instructions are available for detailed guidance.