315/30 R20 Tyres: Free Fitting at a Local Garage

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View 3 Products

Potenza S005

315/30R20 Y (101)

4.5/5

(21 reviews)

D
Fuel Efficiency

Fuel Efficiency / Rolling Resistance: D
How much fuel the tyre uses as it rolls. Graded A to E, where A is the most efficient and E the least.
B
Wet Grip

Wet Grip / Braking Performance: B
How well the tyre stops in the wet. Graded A to E, where A is the shortest stopping distance. Each grade is worth roughly 3 metres, about a car length.
B74 dB
External Noise

Noise Emission / Exterior Noise: B (74 dB)
How loud the tyre is from outside the car, measured in decibels. Graded A to C, where A is the quietest.

Car

Car tyre:
Designed for cars, rather than vans, 4x4s or commercial vehicles.

Fit from:19-10-2026

Fully Fitted Price

^£367^.72

Quantity

P Zero (PZ4)

315/30R20 Y (104)

5.0/5

(2 reviews)

D
Fuel Efficiency

Fuel Efficiency / Rolling Resistance: D
How much fuel the tyre uses as it rolls. Graded A to E, where A is the most efficient and E the least.
C
Wet Grip

Wet Grip / Braking Performance: C
How well the tyre stops in the wet. Graded A to E, where A is the shortest stopping distance. Each grade is worth roughly 3 metres, about a car length.
A69 dB
External Noise

Noise Emission / Exterior Noise: A (69 dB)
How loud the tyre is from outside the car, measured in decibels. Graded A to C, where A is the quietest.

Noise Reduction

Car

Car tyre:
Designed for cars, rather than vans, 4x4s or commercial vehicles.
Reinforced (XL)

Extra Load or Reinforced tyres:
A stronger sidewall lets this tyre carry more weight than a standard tyre of the same size. Marked XL on the sidewall.

Fit from:19-10-2026

Fully Fitted Price

^£422^.99

Quantity

Pilot Sport 4 S

315/30R20 Y (104)

D
Fuel Efficiency

Fuel Efficiency / Rolling Resistance: D
How much fuel the tyre uses as it rolls. Graded A to E, where A is the most efficient and E the least.
B
Wet Grip

Wet Grip / Braking Performance: B
How well the tyre stops in the wet. Graded A to E, where A is the shortest stopping distance. Each grade is worth roughly 3 metres, about a car length.
B73 dB
External Noise

Noise Emission / Exterior Noise: B (73 dB)
How loud the tyre is from outside the car, measured in decibels. Graded A to C, where A is the quietest.

Car

Car tyre:
Designed for cars, rather than vans, 4x4s or commercial vehicles.
Reinforced (XL)

Extra Load or Reinforced tyres:
A stronger sidewall lets this tyre carry more weight than a standard tyre of the same size. Marked XL on the sidewall.

Fit from:19-10-2026

Fully Fitted Price

^£561^.82

Quantity

You've viewed 3 of 3 products

315/30 R20 Tyre Reviews

Overall rating4.5/5

Based on 23 reviews

Annabel Natasza

Regardless of the conditions, I'm pretty certain the tyres will perform as expected.

Bridgestone Potenza S005

Oskar Felton

They have a steady and confident presence when it comes to wet surfaces. When driving quickly, there is very little noise coming from the road.

Bridgestone Potenza S005

Kayde Meila

Perfect, there are no problems at all.

Bridgestone Potenza S005

315/30 R20 Tyre Reviews

4.5/523 reviews

Showing 1–10 of 23 reviews

About these reviews

Tyre reviews recording 315/30 R20, across tyre brands and tread ranges. Each review identifies its tyre range.

5/5

Bridgestone Potenza S005

Regardless of the conditions, I'm pretty certain the tyres will perform as expected.

4/5

Bridgestone Potenza S005

They have a steady and confident presence when it comes to wet surfaces. When driving quickly, there is very little noise coming from the road.

5/5

Bridgestone Potenza S005

Perfect, there are no problems at all.

5/5

Bridgestone Potenza S005

Excellent traction on all types of roads including dry and wet roads. And they are really nice and quiet when you drive.

3/5

Bridgestone Potenza S005

It's really disappointing to have a branded tyre that lasts under 15,000 miles.

5/5

Bridgestone Potenza S005

Provides good traction but has a short lifespan.

5/5

Bridgestone Potenza S005

I don't really drive much, but I have confidence in these tyres.

5/5

The size 315/30 R20 is typically the size used on the rear wheels of powerful sports cars. On staggered setups, it will be the only size used on the rear. The first number, 315, is the width of the tyre in mm. The second number, 30, is the sidewall height aspect ratio, which is 30% of the width (in this case, 94mm). R20 indicates it is a radial tyre that is mounted on a 20-inch wheel. This size has an overall diameter of 697mm. You'll find this size on Tyres.co.uk, including the XL variants.

Part of the size	Value	What it means
Section width	315	The width of the tyre across the tread, measured in millimetres.
Profile (aspect ratio)	30	Sidewall height as a percentage of the width - here, 30% of 315 mm (about 94 mm).
Construction	R	Radial construction, which is what nearly all road tyres use.
Rim diameter	20	The wheel diameter the tyre fits, measured in inches.

Your tyre dimensions

Measurement	Value
Sidewall height	94.5 mm (3.72 in)
Overall diameter	697 mm (27.4 in)
Circumference	2,190 mm (86.2 in)
Revolutions	735 per mile · 457 per km

Similar sizes

Size	Overall diameter
325/25 R21	696 mm · -0.2%
305/30 R20	691 mm · -0.9%
325/30 R20	703 mm · +0.9%
295/35 R19	689 mm · -1.1%
305/25 R21	686 mm · -1.6%
295/30 R20	685 mm · -1.7%