Karcepts Front Sway Bar Kit - 1.13 for MX5-ND
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Karcepts Front Sway Bar Kit - 1.13"


The BEST sway bar for the ND & Fiat 124!

PART NUMBER: 61-3217



Price: $750.00



Free shipping offers apply only to destinations within US Lower 48.

Price: $750.00



Free shipping offers apply only to destinations within US Lower 48.


Designed for the most serious competitors, the Karcepts ND Front Sway Bar Kit leaves no compromises on the table. Hundreds of hours of design time have gone into this kit utilizing CMM technology and FEA analysis. The end result is a 2016+ Mazda MX-5 Miata Front Sway Bar Kit that offers super quick adjustability, an enormous adjustment range, maximum stiffness with minimal weight, and an installation time of just 30 minutes (after the stock bar has been removed).

  • Sway bar rate is adjusted with one wrench, in only a few minutes
  • Rate adjustments are made with the vehicle on the ground, even at low ride heights
  • 5 adjustment positions per sway bar arm, maximizing tunability and overall range
  • Billet aluminum arms optimized for strength and weight utilizing the latest FEA software
  • Light weight, zero deflection solid sway bar mounts provided for precise feel
  • Low friction, lubrication free, dirt resistant, solid polymer bearings require no maintenance
  • Heat treated and plated steel alloy PTFE lined endlinks and all hardware included
  • Splined 1.25" diameter x 0.75" gun drilled high-grade spring steel center section for consistent rates, with center turned down to 1.13" to achieve target rates listed below.

Sway Bar Rates:

OEM ND Front Sway Bar = 132 lbs/in

Karcepts ND Front Sway Bar Kit - 1.13":
Hole 1/1 = 505 lbs/in
Hole 1/2 = 534 lbs/in
Hole 2/2 = 564 lbs/in
Hole 2/3 = 599 lbs/in
Hole 3/3 = 634 lbs/in
Hole 3/4 = 676 lbs/in
Hole 4/4 = 718 lbs/in
Hole 4/5 = 768 lbs/in
Hole 5/5 = 818 lbs/in
Kit Weight = 12.4 lbs

Center Section Recommendations: For an all around great performing bar, we recommend this 1.13" center section. It really hits a nice range of adjustment for this chassis. It can get close to the softness of the other conventional ND bars on the market, yet has the ability to sweep to a much stiffer range (something that is very necessary to provide speed in quick transitions). For SCCA CS trim vehicles, we recommend looking to our other listing for this same kit with the 1.07" bar, since you cannot upgrade the rear sway bar in CS that 1.07" bar tends to balance better with stock rear bar.

View the installation instructions for any potential install/fitment questions you may have:KFSB-ND-XX Installation Instructions

FIAT 124 NOTE: May require modifying or replacing the factory intercooler piping to clear this sway bar.

Brian's Application Notes: I admired and admired this setup but we did not start to carry it until I watched an STR competitor change both his front and rear sway bar settings BETWEEN RUNS at an SCCA event. Took him under a minute to change the rear sway setting, and just over a minute at the front...which is amazing. No other sway setup empowers you to change settings as fast as this setup in my experience, making this setup unique for the hardcore racers who want to dial their setup on the fly. Nonetheless, recommended for the REAL Racers, not the average daily driver because the solid links so good for racing can and will eventually rattle.