Home/305/35R20
Size reference
305/35R20: what fits & what to buy
The widebody size: factory square on Scat Pack Widebody and Hellcat Widebody, and the dream rear for everything else that can clear it.
305 = tread width in millimetres · 35 = sidewall height as a percentage of that width · R20 = radial construction on a 20-inch wheel. Two sizes with the same overall diameter are speedometer-compatible, that is the whole game in staggering.
What runs this size
Charger & Challenger Widebody models 2020+ (factory, square 305/35ZR20), Challenger Redeye Widebody, and the aggressive rear on flared conversions over 11-inch wheels.
Pairing this size front-to-rear? Run it through the stagger calculator before you order.
The picks
The widebody’s best friend. Transforms launch traction; the price stings once and pays for itself every on-ramp.
The OE fitment on many widebodies, a known quantity if you liked the showroom behavior.
A DOT-approved drag radial in the factory size, a second set for track duty, not a daily tire.
Always confirm against the tire placard on your driver-side door jamb and your actual wheel widths before ordering. Fitments here cover common factory and community setups. Years and packages vary.
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Good to know
Can I put 305s on a non-widebody? Not without flares or serious offset work: the fender is the limit, not the wheel. The non-widebody ceiling is realistically 275/40R20.
Wheel width window: 10–12 inches, happiest on 11. Why square from the factory? Dodge ships 305s at all four corners for rotation and neutral balance; most owners keep it and vary compound instead.
// Sources & further reading
- Your vehicle’s tire placard (driver-side door jamb) & owner’s manual · The legally required OEM fitment record on every car, always the first authority.
- Michelin tire size listings & product data sheets · Manufacturer-published sizes and approved rim widths per tire model.
- Continental tire knowledge: rim/tire combinations (ETRTO) · How approved rim-width ranges are defined under industry standards.
- Tire and Rim Association (T&RA) standards · The US standards body whose yearbook defines size/rim pairing norms.
How we compile and verify fitment data: our methodology. Spot an error? fitment@staggeredsetup.com. Corrections ship fast.