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Royal Black Racing Trac tyre, black sidewall, 18 inch rim size

Royal Black

Royal Black Racing Trac 255/40ZR18 99W XL All Season Tire

SKU CH-QRC5-7G94K

All-season passenger tyre sized 255/40R18 with 99W XL rating, 420 treadwear and W speed capability up to 168 mph

  • Features255/40r18 99w-tires speed rated up to 168 mph high performan
  • SeasonAll-Season
  • VehiclePassenger Vehicles
  • Load Index99
  • Speed RatingW
  • UTQG Traction RatingA
  • High-speed stability up to 168 mph with W speed rating
  • All-season traction backed by UTQG A traction grade
  • High load capacity from 99 load index and XL rating
  • Precise 18-inch fitment for 255/40R18 wheel size
  • Long tread life indicated by 420 treadwear rating

Royal Black Racing Trac All-Season Tyre

The Royal Black Racing Trac is a high-performance all-season tyre built for passenger cars. It fits an 18-inch rim and carries a 255/40R18 size designation. The tyre is rated for speeds up to 168 mph with a load index of 99 and an XL load range. A UTQG rating of 420AA indicates strong treadwear and traction credentials.

Suited for performance sedans needing year-round

Drivers of family sedans or sporty coupes who want confident wet and dry handling in a single tyre will appreciate the balanced all-season compound. Buyers who need dedicated winter traction for severe snow and ice should look at a specialist winter tyre instead. The non-run-flat construction also means vehicles requiring run-flat fitment must choose an alternative.

Consistent contact patch under sustained cornering

The 7/32-inch tread depth and asymmetric pattern help maintain a stable footprint during extended high-speed driving. UTQG 420 treadwear suggests the compound resists heat buildup over long motorway stints. Reinforced XL sidewalls limit flex when the tyre is loaded near its 99 index limit. Traction rating A supports reliable braking even as surface temperatures rise.

Highlights

  • High-speed stability up to 168 mph with W speed rating
  • All-season traction backed by UTQG A traction grade
  • High load capacity from 99 load index and XL rating
  • Precise 18-inch fitment for 255/40R18 wheel size
  • Long tread life indicated by 420 treadwear rating

Specifications

BrandRoyal Black
Features255/40r18 99w-tires speed rated up to 168 mph high performance all season weather m+s 255-40r18 255/40-18 255/40r18 255/40/18 255-40-18 255 40 18 2554018 4-ply rating 4-pr load range b lrb passenger car family sedan suv cuv wheels custom wheels auto automobile care tires car repair car engine 18-inch 18-in 18" royal black racing trac
SeasonAll-Season
VehiclePassenger Vehicles
Load Index99
Speed RatingW
UTQG Traction RatingA
UTQG Treadwear Rating420
Shipping Height10.000
Shipping Length24.000
Shipping Width24.000
Load RangeXL
Overall Diameter26
Ply RatingXL
Rim Size18
Sidewall ColorBSW: Black Side Wall
Size255/40R18
UTQG420AA
Run-FlatNo
Tire TypeHigh Performance
Vehicle TypeCar
Size Description (Sidewall Description)255/40R18 99W XL
Section Width255
Aspect Ratio40
Tire & Wheel Diameter18"
Tread Depth7/32

Questions about this item

What wheel diameter do I need for the 255/40R18 size?

These tyres fit an 18 inch rim; the overall diameter is 26 inches, so confirm your wheels are 18 inch before ordering.

Can I mix these W-rated all-season tyres with lower speed-rated tyres on the same axle?

The speed rating is W (168 mph); mixing different speed ratings on one axle is not recommended because handling and stability can be affected.

How do I verify the tyres are performing correctly after installation?

Check that the sidewall shows 255/40R18 99W XL, confirm pressure matches the vehicle placard, and monitor tread wear against the 420 UTQG rating and 7/32 inch starting depth.

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