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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

  • Seasonal useAll-Season
  • Intended vehiclePassenger Vehicles
  • Tire load index99
  • Tire speed ratingW
  • UTQG traction gradeA
  • UTQG treadwear grade420
  • 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.

How it compares

Measured against everything we stock in ATV, Car & SUV Tires, at today’s prices. Recalculated every night.

Price $71.99
Cheaper than about 68% of the 621 comparable items (median $87.99).

Specifications

Product
Brand nameRoyal Black
Display
Screen ratio40
Size & build
Package height10
Package length24
Package width24
Overall tire diameter26
Rim diameter18
Sidewall styleBSW: Black Side Wall
Size255/40R18
Tire size code255/40R18 99 W XL
Tire width255
Wheel diameter18 in (45.7 cm)
Tread depth7/32
Compatibility
Intended vehiclePassenger Vehicles
Compatible vehiclesCar
More details
Seasonal useAll-Season
Tire load index99
Tire speed ratingW
UTQG traction gradeA
UTQG treadwear grade420
Tire load rangeXL
Tire ply ratingXL
UTQG rating420AA
Run-flat capabilityNo
Tire categoryHigh Performance

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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