305/40 R21 - Best winter tyres 2025 - market overview, tests, reviews
Table of contents:
Best winter tyres in tests (2025)
Max. price
Options
Tests from 2024
Tests from 2023
Tests from 2021
If you enjoy sporty driving in winter conditions, the PA5 SUV is the go-to tyre. It's usually the best in the snow in all the tests, while maintaining balance and safety in other conditions. Only downside is high rolling resistance, which is why it hasn't won all the tests it was in.
305/40 R21 tyre test Personalize
Best tyres in your size
Dry
Wet
Snow
Comfort
Economy
1.
Michelin PILOT ALPIN 5 SUV
44%
This is a preview of our comprehensive tyre test. The full test includes:
Detailed property breakdowns
Interactive sorting and filtering
Side-by-side comparisons
Did you know ...?
305/40 R21 doesn't belong to the most popular dimensions for winter tyres - there are 0 tyre models available, which can be compared to 155/60 R15, 170/60 R17, 160/60 R14. Let's break down the sizing - 40 is height of the tyre, which is calculated as 40% of the tyre width (305mm), which means the sidewall height has 122 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 2442.27 mm, which is very similar to 265/70 R16(2442.27 mm), 265/65 R17(2438.82 mm), 275/40 R22(2446.67 mm), 265/60 R18(2435.36 mm), 245/70 R17(2434.11 mm), 265/55 R19(2431.91 mm), 245/75 R16(2431.28 mm). There are multiple speed indexes available for winter tyres in 305/40 R21: V(240km/h). The same goes for weight indexes: 113.
