325/25 R21 Tyres

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Sport Contact 6

325/25R21 Y (102)

3.0/5

(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.
A
Wet Grip

Wet Grip / Braking Performance: A
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.
B75 dB
External Noise

Noise Emission / Exterior Noise: B (75 dB)
How loud the tyre is from outside the car, measured in decibels. Graded A to C, where A is the quietest.

Wet Grip Excellence

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:18-10-2026

Fully Fitted Price

^£327^.41

Quantity

Pilot Sport 4 S

325/25R21 Y (102)

5.0/5

(2 reviews)

C
Fuel Efficiency

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

Wet Grip / Braking Performance: A
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.

Wet Grip Excellence

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:18-10-2026

Fully Fitted Price

^£372^.14

Quantity

You've viewed 2 of 2 products

325/25 R21 Tyre Reviews

Overall rating4.0/5

Based on 4 reviews

Harris A.

Good quality and grip nicely.

Michelin Pilot Sport 4 S

Simar K.

A reasonable tyre all round, which is what you expect for the price.

Continental Sport Contact 6

Hibah Stroud

At first, they did a good job, but they exhausted themselves in under 3,000 miles. I would suggest any Audi S5 owner stay clear of these tyres as they are terrible and a complete…

Continental Sport Contact 6

325/25 R21 Tyre Reviews

4.0/54 reviews

Showing 1–4 of 4 reviews

About these reviews

Tyre reviews recording 325/25 R21, across tyre brands and tread ranges. Each review identifies its tyre range.

5/5

Continental Sport Contact 6

A reasonable tyre all round, which is what you expect for the price.

1/5

Continental Sport Contact 6

At first, they did a good job, but they exhausted themselves in under 3,000 miles. I would suggest any Audi S5 owner stay clear of these tyres as they are terrible and a complete waste of money.

5/5

325/25 R21 is an ultra low-profile size suited for high-performance cars. The designation explains itself. 325 means the tyre is 325mm wide. The number 25 is the aspect ratio; this tyre has a sidewall of 81mm (25% of 325mm). R21 means it is a radial tyre fitted to a 21" rim. The sidewall (81mm) and the rim (21") give this tyre an overall diameter of 696mm. The sidewall offers less protection to the rim on bad roads because it is low. You'll find 325/25 R21 (including the XL versions) in stock at Tyres.co.uk.

Part of the size	Value	What it means
Section width	325	The width of the tyre across the tread, measured in millimetres.
Profile (aspect ratio)	25	Sidewall height as a percentage of the width - here, 25% of 325 mm (about 81 mm).
Construction	R	Radial construction, which is what nearly all road tyres use.
Rim diameter	21	The wheel diameter the tyre fits, measured in inches.

Your tyre dimensions

Measurement	Value
Sidewall height	81.2 mm (3.20 in)
Overall diameter	696 mm (27.4 in)
Circumference	2,186 mm (86.1 in)
Revolutions	736 per mile · 457 per km

Similar sizes

Size	Overall diameter
315/30 R20	697 mm · +0.2%
305/30 R20	691 mm · -0.7%
325/30 R20	703 mm · +1.0%
305/25 R21	686 mm · -1.4%
335/30 R20	709 mm · +1.9%
305/30 R21	716 mm · +2.9%