255/50 R21 - Best summer tyres 2026 - market overview, tests, reviews
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Best summer tyres in tests (2026)
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Tests from 2025
Tests from 2023
The P Zero range is with us for a long time, also being a favorite choice for car manufacturers as first equipment. It’s a good, well balanced and enjoyable tyre. It tends to get quite a few mid-life updates so make sure you get the latest one.
| Shop | Product | Stock | Availability | Shipping | Price | Action |
|---|---|---|---|---|---|---|
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P Zero PZ4 Sports Car ELECT XL NCS (*)
- In stock
£218
|
P Zero PZ4 Sports Car ELECT XL NCS (*) | In stock | Free shipping | £218 |
Buy
tyres.pneus.online.uk
|
|
|
Pirelli P Zero PZ4 SC ( 255/50 R21 109Y XL *, Elect, PNCS, with rim protection (MFS) )
- In stock
£246
|
Pirelli P Zero PZ4 SC ( 255/50 R21 109Y XL *, Elect, PNCS, with rim protection (MFS) ) | In stock | Free shipping | £246 |
Buy
mytyres.co.uk
|
255/50 R21 tyre test Personalize
Best tyres in your size
Dry
1.
Hankook Ventus Prime 4
75%
2.
Pirelli P ZERO PZ4
73%
3.
GoodYear Efficientgrip Performance 2
66%
4.
Nexen N fera Sport
47%
Wet
1.
Pirelli P ZERO PZ4
72%
2.
GoodYear Efficientgrip Performance 2
58%
3.
Hankook Ventus Prime 4
57%
4.
Nexen N fera Sport
50%
Comfort
1.
Nexen N fera Sport
77%
2.
Goodyear EfficientGrip Performance 2
70%
3.
Pirelli P ZERO PZ4
65%
4.
Hankook Ventus Prime 4
54%
Economy
1.
GoodYear Efficientgrip Performance 2
79%
2.
Hankook Ventus Prime 4
71%
This is a preview of our comprehensive tyre test. The full test includes:
Detailed property breakdowns
Interactive sorting and filtering
Side-by-side comparisons
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255/50 R21 doesn't belong to the most popular dimensions for summer tyres - there are 3 tyre models available, which can be compared to 155/60 R15, 170/60 R17, 160/60 R14. Let's break down the sizing - 50 is height of the tyre, which is calculated as 50% of the tyre width (255mm), which means the sidewall height has 127.5 mm. The wheel diameter is R21, which means it fits to a 21 inch/533.4mm diameter wheel. The total circumference of the tyre is 2476.83 mm, which is very similar to 255/55 R20(2477.15 mm), 275/65 R17(2479.66 mm), 285/45 R21(2481.54 mm), 285/40 R22(2471.81 mm), 315/40 R21(2467.41 mm), 275/70 R16(2486.26 mm), 275/55 R19(2466.46 mm). There are multiple speed indexes available for summer tyres in 255/50 R21: H(210km/h), V(240km/h), W(270km/h), Y(300km/h). The same goes for weight indexes: 106, 109.
Runflat
There are 2 runflat variants available.
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