Ultra Racing Front Anti Roll Bar - 23mm • AR23-598

Ultra Racing 23mm front anti-roll bar kit for Mazda MX-5 MK4 / ND and RF models listed in the compatibility table.

The Ultra Racing AR23-598 is an uprated front anti-roll bar designed as an aftermarket chassis and handling upgrade for the fourth-generation Mazda MX-5.

The anti-roll bar links the left and right sides of the front suspension and works to resist excessive body roll as the vehicle corners. With its 23mm solid-steel construction, the AR23-598 provides increased front roll stiffness compared with a softer standard anti-roll bar arrangement, helping the chassis feel more controlled during cornering and rapid changes of direction.

Product details:

• Brand: Ultra Racing
• Part number: AR23-598
• Product type: Front Anti-Roll Bar / Sway Bar
• Position: Front suspension
• Bar diameter: 23mm
• Construction: Solid steel
• Quantity required per vehicle: 1
• Quantity supplied: 1 front anti-roll bar kit
• Bushes: Included
• Mounting brackets: Included
• Existing vehicle nuts / bolts are reused where applicable unless replacement hardware is supplied

Common reasons for fitting:

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

Fitment advice:

Application data identifies AR23-598 for Mazda MX-5 MK4 / ND and RF models from 2015 onwards, including 1.5 and 2.0-litre applications. As an anti-roll bar installation involves suspension mounting points, check the existing brackets, drop links, bushes 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 rear 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 front of the vehicle is required and suspension-related fasteners must be correctly refitted.

Why Ultra Racing?

Ultra Racing specialises in aftermarket chassis and handling upgrades. Its anti-roll bars are designed to control unwanted body movement and improve suspension consistency during cornering while retaining a vehicle-specific mounting arrangement.

What's in the box:

• 1 x Ultra Racing AR23-598 23mm front anti-roll bar
• Anti-roll-bar bushes
• Mounting brackets
• Additional mounting hardware where supplied by Ultra Racing

Installation notes:

The front of the vehicle will need to be safely raised to access the anti-roll-bar mounting locations. Remove the existing bar as required and install the Ultra Racing bar, bushes and brackets in the correct orientation. Check that the bar, bushes, brackets 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.