Ultra Racing Rear Anti Roll Bar - 16mm • AR16-214

Ultra Racing 16mm rear anti-roll bar kit for Mazda MX-5 MK3 / MK3.5 / MK3.75 NC models listed in the compatibility table.

The Ultra Racing AR16-214 is an uprated rear anti-roll bar designed as an aftermarket suspension and handling upgrade for the third-generation Mazda MX-5 NC.

The anti-roll bar links the left and right sides of the rear suspension and resists body roll as the vehicle corners. Its 16mm solid-steel construction is designed to increase rear roll stiffness and help provide a more controlled and consistent chassis response during cornering and rapid changes of direction.

Product details:

• Brand: Ultra Racing
• Part number: AR16-214
• Product type: Rear Anti-Roll Bar / Rear Sway Bar / Rear Stabilizer Bar
• Position: Rear suspension
• Bar diameter: 16mm
• Construction: Solid steel
• Installation method: Bolt-on
• Ultra Racing accessory reference: AC113
• Approximate dimensions: 91cm x 18cm x 13cm
• Approximate weight: 2.0kg
• Quantity required per vehicle: 1
• Quantity supplied: 1 rear anti-roll bar kit
• Anti-roll-bar bushes: Included
• Mounting brackets: Included

Common reasons for fitting:

• Reduce excessive body roll during cornering
• Increase rear suspension roll stiffness
• Improve chassis response during changes of direction
• Provide a more controlled rear-end feel during enthusiastic road or track driving
• Complement upgraded front anti-roll bars, suspension and chassis bracing

Fitment advice:

Ultra Racing manufacturer data directly confirms AR16-214 for Mazda MX-5 NC 2.0 models, while MazSpec application data lists the same part across all Mazda MX-5 MK3 / MK3.5 / MK3.75 NC variants, including 1.8 and 2.0-litre applications. No Sport-specific restriction is stated in the generation-wide MazSpec application. As installation involves suspension mounting points, inspect the existing drop links and associated fasteners for wear or corrosion during fitting. For imported, modified or previously repaired cars, matching the mounting arrangement on the vehicle before installation is recommended.

Other items to consider purchasing:

• Ultra Racing front anti-roll bar
• Ultra Racing front strut brace
• Ultra Racing front lower brace
• Ultra Racing middle lower brace
• Ultra Racing rear lower brace
• Replacement anti-roll-bar drop links where existing joints show wear

Useful tools / consumables:

• Socket and ratchet set
• Torque wrench
• Suitable vehicle lift or axle stands
• Penetrating fluid for corroded suspension fasteners
• Suitable bush lubricant where specified during installation

Difficulty guide: Intermediate DIY / workshop installation. Safe access beneath the rear of the vehicle is required and suspension-related mounting hardware must be correctly refitted.

Why Ultra Racing?

Ultra Racing specialises in aftermarket chassis and handling upgrades. Its uprated anti-roll bars are designed to increase roll stiffness and reduce unwanted body movement while retaining a vehicle-specific mounting arrangement.

What's in the box:

• 1 x Ultra Racing AR16-214 16mm rear anti-roll bar
• Anti-roll-bar bushes
• Mounting brackets
• Additional mounting hardware where supplied

Installation notes:

Ultra Racing specifies AR16-214 as a bolt-on installation. The rear of the vehicle must be safely raised to access the anti-roll-bar mounting locations. Remove the existing rear anti-roll bar as required and install the Ultra Racing bar, bushes and brackets in the correct orientation. Check that the bar, brackets, bushes and drop links are correctly located and free from interference throughout the suspension's normal range of movement. Reassemble and tighten all mounting hardware to the appropriate vehicle or manufacturer specification.