UK tyre comparison • Source feeds: 29 Sept 2026
☀ SummerDunlop SP Sport Maxx 050 RunFlat tyre model

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

Dunlop · SUV / 4×4

SP Sport Maxx 050 RunFlat

245/45 R20 99Y

245/45 R20 99Y runflat BLK

Wet gripBEfficiencyDExternal noise65 dB
From £147.47 / 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 ↗£147.47mytyres.co.uk Affiliate link ↗£149.19Delivery, 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
£147.47Feed 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
£149.19Feed delivery charge: £0Confirm postcode and order conditions
Visit retailer ↗Affiliate link

EXPLORE THE CAR REFERENCES

Cars with 245/45 R20 in their manufacturer references

3 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.

Lexus LC →

February 2024 UK technical sheet

United Kingdom

  • 245/45 R20 · Front
    LC 500 / LC 500h; RF run-flat

Lexus LS →

February 2023 UK technical sheet

United Kingdom

  • 245/45 R20 · Front and rear
    Non-F Sport; RF run-flat
  • 245/45 R20 · Front
    F Sport; RF run-flat

Toyota Mirai →

UK online tyre reference; checked 30 September 2026

United Kingdom

  • 245/45 R20 · Front and rear
    Mirai; main model section
Browse all 200 car guides →

THE PRICE, OVER TIME

Recorded price changes.

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

£147.47 – £149.76Observed range
Recorded GBP item prices for Dunlop SP Sport Maxx 050 RunFlat 245/45 R20 99Y 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.£147.47£149.76Tirendo UK: £148.03, 25 Sept 2026Tirendo UK: £147.47, 29 Sept 2026mytyres.co.uk: £149.76, 25 Sept 2026mytyres.co.uk: £149.19, 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£148.03
Tirendo UK29 Sept 2026£147.47
mytyres.co.uk25 Sept 2026£149.76
mytyres.co.uk29 Sept 2026£149.19

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 133 current summer variants in 245/45 R20, from 24 brands in our feeds. Each variant contributes its lowest available item price once.

This variant£147.47
Same-size median£211.60
Same-size range£130.31–£348.27
Wet-grip A78 / 133Variants 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 245/45 R20

No other current model meets our comparison criteria in this size.

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.

Browse all 245/45 R20 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
245/45 R20
Load index
99
Speed rating
Y
Season
Summer
Vehicle category
SUV / 4×4
Extra load (XL)
Not marked in feed
Run-flat
Marked in retailer specification
EV suitability
Not confirmed
Wet grip
B
Fuel efficiency
D
External rolling noise
65 dB
Manufacturer part number
339464
EAN / GTIN
4250427444277
Read the retailer’s description

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

Maximum grip and handling, maximum driving pleasure For high performance sports cars. The Dunlop SP SportMaxx is a race-proven tyre that delivers maximum grip for high performance sports cars. Outstanding dry and wet handling Superb braking and acceleration performance High aquaplaning resistance Stability and comfort Specific bead seat system. Strengthens the link between tire and rim for a more precise driving experience. Like the grip between your hand and the steering wheel, the Specific Bead Seat System enhances control and conveys outstanding road feedback.Benefits Enhanced road feedback; greater stability and precision. Jointless Belt (JLB). A Hybrid Overlay Technology that reduces circumferential deformations at high speeds.Benefits Superior high speed stability; smooth and even wear. Maximum Flange Shield (MFS). A rim flange protection system. MFS employs a profile of rubber that runs around the circumference of the tire above the wheel flange. This creates a protective buffer zone.* Benefits Protects expensive alloy wheels from kerbing.* Only available in select sizes Multi Radius Tread (MRT). MRT designs employ ten different radii and are therefore more precise. This results in highly effective pressure deployment on the road contact patch. The effect is smoother transitions from straight to corner, leading to more precise and progressive reactions.Benefits Significantly better control over the evolution of the footprint in all driving conditions; responsive wet and dry handling; increased cornering control. Dual Silica Compound. This compound improves acceleration performance and promotes low wear and tear.Benefits Superb braking and acceleration performance; excellent handling on summer and autumn roads; high grip; wear resistance. 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: 245/45 R20 99Y 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.