Choosing the correct tyre size is essential for safety, handling and MOT compliance. Here’s how to find your tyre size and choose the right tyres for your vehicle.

🔍 Where to Find Your Tyre Size

Your tyre size appears in three places:

1️⃣ On your tyre sidewall

Examples:

👉 https://pwteuropeltd.com/collections/205-55r16-tyres

👉 https://pwteuropeltd.com/collections/225-45r17-tyres

👉 https://pwteuropeltd.com/collections/235-40r18-tyres

👉 https://pwteuropeltd.com/collections/265-35r22-tyres

2️⃣ Driver’s door frame sticker

Shows tyre size, load index, speed rating and PSI.

3️⃣ Vehicle handbook

Manufacturer-size reference.

🔢 What Tyre Numbers Mean

Using 225/45R17 91Y as an example:

• 225 = Width (mm)

• 45 = Profile (%)

• R = Radial

• 17 = Wheel size (inches)

• 91 = Load rating

• Y = Speed rating

🚗 Why the Correct Size Matters

Using the right tyre size ensures:

• Proper handling

• Better wet grip

• Even tyre wear

• Fuel efficiency

• MOT compliance

Wrong tyre size = unsafe + illegal.

🛠 Changing Tyre Size – Is It Allowed?

You can change width or wheel size slightly if:

• Rolling radius stays close

• Load index meets/exceeds factory

• Speed rating is correct

When unsure, contact PWT Europe Ltd.

📘 Popular UK Tyre Sizes

205/55R16
👉 https://pwteuropeltd.com/collections/205-55r16-tyres

225/45R17
👉 https://pwteuropeltd.com/collections/225-45r17-tyres

235/40R18
👉 https://pwteuropeltd.com/collections/235-40r18-tyres

265/35R22
👉 https://pwteuropeltd.com/collections/265-35r22-tyres

195/65R15
👉 https://pwteuropeltd.com/collections/195-65r15-tyres

235/45R17
👉 https://pwteuropeltd.com/collections/235-45r17-tyres

225/40R18
👉 https://pwteuropeltd.com/collections/225-40r18-tyres

255/35R19
👉 https://pwteuropeltd.com/collections/255-35r19-tyres

🛒 Find the Right Tyre for Your Car

➤ Tyre Size Index

👉 https://pwteuropeltd.com/collections/tyre-size-index

➤ Shop All Tyres

👉 https://pwteuropeltd.com/collections/all

➤ Shop by Brand

👉 https://pwteuropeltd.com/pages/tyre-brands-a-z

🏁 Final Tip

Always replace tyres in pairs (front or rear) for balanced handling and safety.