UK tyre comparison • Source feeds: 29 Sept 2026
☀ SummerDunlop SP Sport Maxx GT RunFlat tyre model

Retailer-supplied model image; sidewall and markings may vary by size.

Dunlop · SUV / 4×4

SP Sport Maxx GT RunFlat

285/35 R21 105Y · XL

285/35 R21 105Y XL *, with rim protection (MFS), runflat BLK

Wet gripBEfficiencyCExternal noise70 dB
From £392.11 / tyre

2 retailers · Source: 29 Sept 2026

Affiliate links. We may earn commission. Item prices per tyre; fitting extra. Both retailers are in the Delticom group.

Tirendo UK Affiliate link ↗£392.11mytyres.co.uk Affiliate link ↗£396.69Delivery, dates & full offer details ↓

Size alone does not confirm fitment. Check your vehicle’s approved size, load, speed and any original-equipment markings.

Compare retailer prices

Per tyre. Fitting is not included in this comparison. Confirm the final total and availability with the retailer.

Affiliate disclosure We may earn a commission when you buy through these links. Prices are ordered from low to high, regardless of commission.

Tirendo UK

Listed available in feed · 2-4 working days

Source updated 29 Sept 2026 · Imported 30 Sept 2026
£392.11Feed delivery charge: £0Confirm postcode and order conditions
Visit retailer ↗Affiliate link

mytyres.co.uk

Listed available in feed · 2-5 weekdays

Source updated 29 Sept 2026 · Imported 30 Sept 2026
£396.69Feed delivery charge: £0Confirm postcode and order conditions
Visit retailer ↗Affiliate link

EXPLORE THE CAR REFERENCES

Cars with 285/35 R21 in their manufacturer references

2 model guides mention this size. Open a guide to check the documented edition, wheel option and axle.

Size match only — compatibility is not confirmed. The tyre shown may have different load or speed ratings, XL/HL, run-flat construction or manufacturer markings. Check your exact generation, trim, wheel and axle requirements before buying.

BMW 7 Series →

UK online tyre reference; checked 30 September 2026

United Kingdom

  • 285/35 R21 105 Y XL · Rear
    7 Series Saloon; standard (STD)

BMW i7 →

UK online tyre reference; checked 30 September 2026

United Kingdom

  • 285/35 R21 105 Y XL · Rear
    i7 Saloon; standard (STD)
Browse all 200 car guides →

THE PRICE, OVER TIME

Recorded price changes.

25 Sept 2026 – 29 Sept 2026 · UK GBP item price per tyre

£392.11 – £398.20Observed range
Recorded GBP item prices for Dunlop SP Sport Maxx GT RunFlat 285/35 R21 105Y XL *, with rim protection (MFS), runflat BLKTirendo UK: 2 recorded price levels; mytyres.co.uk: 2 recorded price levels. Exact dates and prices are in the table below. Steps show when a changed price was recorded, not every movement between feeds.£392.11£398.20Tirendo UK: £393.60, 25 Sept 2026Tirendo UK: £392.11, 29 Sept 2026mytyres.co.uk: £398.20, 25 Sept 2026mytyres.co.uk: £396.69, 29 Sept 202625 Sept 202629 Sept 2026
━ Tirendo UK┄ mytyres.co.uk

Each point is a dated retailer-feed observation. Repeated unchanged prices are not added as new changes. Lines connect recorded levels; changes between checks may be missing. Delivery and fitting are excluded. This is a short history from two retailers in one group, not a market price index.

View dates and prices as a table
RetailerChange observedItem price
Tirendo UK25 Sept 2026£393.60
Tirendo UK29 Sept 2026£392.11
mytyres.co.uk25 Sept 2026£398.20
mytyres.co.uk29 Sept 2026£396.69

Tirendo UK last source check: 29 Sept 2026 · mytyres.co.uk last source check: 29 Sept 2026

YOUR SIZE IN CONTEXT

How does this variant compare?

Among 36 current summer variants in 285/35 R21, from 14 brands in our feeds. Each variant contributes its lowest available item price once.

This variant£392.11
Same-size median£290.45
Same-size range£181.12–£491.53
Wet-grip A24 / 36Variants with a supplied grade

Ratings, load, speed, construction and manufacturer approvals may differ within this size. Price position is not a performance score or a fitment recommendation.

EXPLORE THE ALTERNATIVES

Similar tyres in 285/35 R21

Same recorded size, season, vehicle category, XL marking and run-flat status. Exact-rated choices are limited, so some cards have different load or speed ratings, clearly marked below.

Check the full specification and manufacturer markings. A missing run-flat marking is not proof of conventional construction. These suggestions do not confirm vehicle fitment. Check your car’s requirements.

Same recorded load & speed

£56.81 less per tyre · External noise 74 vs 70 dB

Different load or speed — check requirements

Load 108 vs 105 · £99.42 more per tyre · Wet grip A vs B · Efficiency A vs C · External noise 68 vs 70 dB

Browse all 285/35 R21 tyres →

The finer details

Know what you’re comparing.

Specifications are supplied by the retailer for this variant. A missing field means it is not confirmed. Label values can differ between sizes of the same model.

How to read tyre labels ↗
Tyre size
285/35 R21
Load index
105
Speed rating
Y
Season
Summer
Vehicle category
SUV / 4×4
Extra load (XL)
Marked XL / reinforced
Run-flat
Marked in retailer specification
EV suitability
Not confirmed
Wet grip
B
Fuel efficiency
C
External rolling noise
70 dB
Manufacturer part number
529133
EAN / GTIN
3188649821839
Read the retailer’s description

Supplied by mytyres.co.uk. These are the retailer’s product claims, not independent test findings from Tyres Compared.

Exceptional dry grip and responsiveness, for high performance sports driving: Superior dry grip, precise handling and responsiveness and high speed and cornering stability. RunOnFlat. Dunlop Self Supporting Technology (DSST)Dunlop RunOnFlat Technology allows for continued driving after a puncture or blowout for up to 80km. RunOnFlat tyres use reinforced sidewalls, which enable the tyre to maintain mobility after a complete loss of air pressure.Safety Notice Dunlop RunOnFlat tyres should only be mounted on cars that are designed for run flat tyres and equipped with a fully operating tyre pressure warning device, such as Dunlop WARNAIR. A maximum distance of 80km/50 miles and maximum speed of 80 kmh/50 mph should not be exceeded. Please refer to your car’s manual as manufacturers’ advice for a particular vehicle may differ..

Source & product identity

Offers are matched by validated EAN/GTIN with matching brand, size, load, speed and manufacturer part number. Tyres without a valid GTIN remain retailer-specific. Merchant specification: 285/35 R21 105Y XL *, with rim protection (MFS), runflat BLK.

These are dated retailer feed observations, not independent tyre tests or guaranteed stock. Tirendo UK feed updated 29 Sept 2026; mytyres.co.uk feed updated 29 Sept 2026.