295/30 R18 indicates a 295 mm wide tyre with a 30% profile sidewall designed for an 18-inch wheel. That combination typically delivers strong grip and fast steering response, but it can feel firmer over rough UK roads because there is less sidewall to absorb impacts. For the best results, choose a quality compound and keep pressures and wheel alignment within the vehicle maker’s specification.
295/30 R18 is commonly used on the rear axle of high-performance rear-wheel drive or all-wheel drive cars where extra traction is needed. Examples include rear fitments found on models like the Porsche 911 (996 Turbo) and Ferrari 360. Always confirm the correct front and rear sizes on your door placard, handbook, or existing tyres before ordering.
A change to 295/30 R18 can alter overall diameter, sidewall shape and clearance, which may affect speedometer accuracy, arch clearance and handling balance. It also needs to suit your wheel width to avoid excessive stretch or bulge. If your vehicle is not approved for the change, it is safer to stick with the manufacturer-recommended size or take advice from a qualified fitter before buying.
Match the 295/30 R18 load index and speed rating to your vehicle specification and never downgrade from what is listed on the placard or fitted from factory. This size is often supplied with high speed ratings and may be marked XL (Extra Load) on certain applications. If your car requires an OE approval marking, such as a Porsche N rating, select that version to maintain the intended performance and warranty requirements.
All-season and winter availability in 295/30 R18 is usually limited because it is a specialist performance size, so most options are summer tyres. If you drive year-round, check current stock for all-season alternatives, but be prepared that the choice may be narrower than in more common sizes. For consistent cold-weather performance, many drivers use a dedicated winter wheel and tyre setup in an approved alternative size.
