Advice sheet to compare and rank the tyres matching your size and vehicle:

Tyres MERCEDES SL R232 275/35 R 21 103YGB-BUCKINGHAMSH

Searched on 31 October 2026 at 14:17

Identification : MERCEDES SL R232 275/35 R 21 103Y

Vehicle brand
MERCEDES
Model
SL R232
Years
2022 – …
Dimension read
275/35 R 21 103Y
Front origin
275/35 ZR 21 103Y XL
Rear origin
305/30 ZR 21 104Y XL
3PMSF
No
Runflat
No
Department
GB-BUCKINGHAMSH
Annual mileage
10,000 – 20,000 km / year
Season preference
Summer / winter tyres
Read confidence
86 %
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Which tyres to choose in 275/35 R 21 103Y — GB-BUCKINGHAMSH?

For this MERCEDES SL R232, the selected size is 275/35 R 21 103Y. Below is the ranking of summer, winter and all-season tyres based on the local climate and your mileage.

Your Journey

Buckinghamshire (GB-BUCKINGHAMSH)

Local weather conditions and suitable tyres, step by step.

Step 1

Geographical and meteorological conditions of your department.

2 trains : été + hiver — Permutation novembre / mars · Pas d'obligation au Royaume-Uni

Terrain

Mostly flat

▲

Rainfall

125 j

Rainy days / year

Snowfall

9 j

Snowy days / year

Days < 7 °C

108 j

Summer tyre efficiency threshold

Frost days

42 j

Risk of black ice

Modéré

Days > 30 °C

11 j

Mountain Law

NON

Step 2

What is your annual mileage?

Check the box corresponding to your usage to guide your choice.

Warning: regardless of the distance and mileage covered, take care to equip yourself with tyres that have the best braking performance. Your daily commutes require the best performance for your safety!

Step 3

Summer, winter, or all-season?

Comparison of solutions according to usage and key criteria for your department.

Frequent snow / mountain

Summer + winter tyres
All-season tyres

Rain — wet braking

Summer + winter tyres
All-season tyres

Road holding

Summer + winter tyres
All-season tyres

Do you want to use summer / winter or all-season tyres?

Step 4

Eco Info

What your tyre choice really means for the environment.

Rolling resistance accounts for approximately 20% of a vehicle's fuel consumption. Moving from a Class C to a Class A on the European label represents up to 0.3 l/100 km saved, or several hundred kg of CO₂ avoided over the lifespan of the set of tyres.

Durability is the second lever: a tyre that lasts 20% longer reduces raw materials consumed and waste generated by the same amount. Correct pressure (monthly check), a timely swapped set, and healthy alignment extend tyre life much more effectively than any rubber choice.

Wear particles and rolling noise complete the picture: tyres with the best noise rating (dB) and the most abrasion-resistant compounds limit non-exhaust emissions, which are becoming the main source of pollution from electric vehicles.

Optimal energy efficiency: optimize your fuel consumption and reduce the cost per kilometre of your vehicles.

Equipment offering the greatest fuel savings in the Buckinghamshire department.

Summer tyre

Winter tyre

All-season tyre

Step 5

Tire selection

Rankings for dimension 275/35 R 21 103Y

All-season tires

275/35 R 21

economic score / ecological score / overall performance rankings — one reference per brand and profile.

Step 6

Page summary by AI

A personalized buying tip, built solely from the information on this page.

  • Vehicle : MERCEDES SL R232
  • Dimension : 275/35 R 21 103Y
  • Department : Buckinghamshire (GB-BUCKINGHAMSH)
  • Mileage : 10,000 – 20,000 km / year
  • Preference : Summer / winter tires (two sets)
  • Tires analyzed : 9

Your situation

Your Mercedes SL R232, from 2022 onward, uses 275/35 R 21 103Y tyres. The listed fitment is a Michelin Pilot Sport 4 S without 3PMSF certification or run-flat technology.

In Buckinghamshire, there are 108 days below 7°C, 42 frost days, 11 days below 0°C and moderate black-ice risk. Snowfall is rated at 9, with limited relief.

Summer, winter or all-season

Two separate summer and winter sets are the strongest choice and match your selected preference. This solution receives three stars for rain and handling, versus one star for all-season tyres. It also scores two stars in light snow and three stars in mountain snow, compared with one star for all-season tyres.

There is no Mountain Law requirement and no winter-tyre obligation in the UK. However, the 108 colder days, frost and ice support changing sets around November and March. The indicated usage-cost level is €€€ for summer tyres and €€ for winter or all-season tyres.

Mileage and running costs

At 10,000–20,000 km per year, durability and efficiency are relevant. Alternating two sets spreads annual use between them. Fuel label and economy score should therefore influence the choice, alongside seasonal safety.

Recommended tyres

•MICHELIN Pilot Sport S 5 — 275/35 R 21 103Y: summer tyre with B fuel efficiency, B wet grip, and scores of 82 overall, 72 ecology and 62 economy. It fully matches the stated 103Y specification.

•MICHELIN Pilot Alpin 5 — 275/35 R 21 103V: 3PMSF winter tyre. Choose the listed version with B wet grip; it has C fuel efficiency and scores 81 overall, 77 ecology and 65 economy.

•GOODYEAR UltraGrip Performance 3 — 275/35 R 21 103V: 3PMSF winter alternative, with C fuel efficiency and C wet grip. Scores are 81 overall, 75 ecology and 69 economy.

The winter options have a V speed index rather than the stated Y index, so compatibility must be professionally confirmed.

Points to watch

Wet and cold braking remain priorities. Check tyre pressure regularly and arrange appropriate rotation and the November/March seasonal changeover. Maintain the specified load index and verify any speed-index difference before purchase. This guidance is indicative and does not replace advice from a tyre professional.

AI-generated advice based solely on information displayed on this page. Purely indicative: consult a professional before any purchase.

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