For full performance upgrades, see our Mustang Performance Guide.
The 2018 Ford Mustang uses a 5x114.3mm bolt pattern and 70.5mm hub bore on the S550 platform with independent rear suspension. This page covers 19x9.5 / 19x10.5 wheels with 275/40R19 / 305/35R19 tires and an offset window of +35 to +45mm. The 2018 Mustang base received a mid-cycle refresh on the S550 platform, introducing a revised front fascia, updated chassis tuning, and the optional MagneRide active suspension system on higher trims. The base model retains conventional dampers, which provides slightly more offset flexibility than MagneRide-equipped cars since the active damper calibration is less sensitive to scrub radius changes. The independent rear suspension on 2018 S550 cars continues to allow true staggered rear fitment without the live-axle width restrictions that characterized the S197 Mustang through 2014. Running 275/40R19 / 305/35R19 on 19x9.5 / 19x10.5 rear wheels operates entirely within the IRS travel envelope at standard ride height. For the 275/40R19 / 305/35R19 tire on a 19x9.5 / 19x10.5 wheel, the aspect ratio affects overall ride height slightly — a change in sidewall height will alter actual ground clearance and effective final drive ratio. The S550 Mustang strut front suspension is straightforward for aftermarket wheel fitment: the primary constraints are offset relative to the strut body on the inboard side and fender liner clearance on the outboard side under compression.
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Compare 2018 wide tire fitment across related Ford models
More Ford fitment options for your build
2019 Ford Mustang
295/35R20 / 335/30R20
2011 Ford Mustang
275/40R19 / 305/35R19
2010 Ford Mustang
285/35R20 / 315/35R20
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