305/660/18 GoodYear Slick TYRE GT

Product introduction

The GoodYear Slick Circuit 305/660/18 GT tyre is a competition tyre designed for circuit use, intended for GT vehicles and racing cars requiring very high grip, precision and consistency. Previously marketed under the Dunlop brand, this GoodYear slick range is developed to meet motorsport demands in dry conditions.

Role of the part

A circuit slick tyre provides the direct link between the vehicle and the track. Unlike a road tyre, it has no tread pattern, maximising the contact patch. This design delivers high traction, powerful braking and excellent cornering stability when the tyre is used within its optimal temperature range.

Symptoms or consequences of a worn or unsuitable tyre

• Loss of grip under acceleration, braking or cornering loads
• Longer braking distances on track
• Less precise vehicle handling on corner entry and exit
• Uneven wear caused by unsuitable pressure, camber or temperature
• Reduced lap time performance and lack of consistency over long stints
• Increased risk of rapid degradation if the compound used is unsuitable for track conditions

Benefits of replacement

• Improved mechanical grip on dry tracks
• Better traction for powerful GT-type vehicles
• Increased precision during braking and the build-up of cornering loads
• More consistent handling when the tyre is used at the correct temperature
• Compound choice allowing the tyre to be adapted to operating conditions
• Product suited to competition, advanced trackdays or intensive circuit driving

Specifications

• Brand: GoodYear, formerly Dunlop
• Model: Circuit slick
• Dimensions: 305/660/18 GT
• Range: Slick
• Available compounds: B3 Medium and C1 Hard
• Width: 12.5
• Diameter: 655 mm
• Overall width: 334 mm
• Tread: 295 mm
• Weight: 11.04 kg
• B3 compound reference: 305/660R18 GY SLICK GT 02B3
• C1 compound reference: 305/660R18 GY SLICK GT 02C1
• Use: circuit on dry tracks only

Vehicle compatibility

This GoodYear Slick Circuit 305/660R18 GT tyre is intended for competition vehicles, GTs, prototypes or track cars fitted with 18-inch wheels compatible with this tyre width and diameter. It suits cars prepared for circuit use requiring a wide slick fitment offering high grip on dry tracks.

Before fitting, it is essential to check compatibility with wheel width, wheel arch clearance, wheel alignment, applicable sporting regulations and operating pressure and temperature recommendations.

Conclusion

The GoodYear Slick Circuit 305/660/18 GT is a high-performance competition tyre for GT vehicles and racing cars seeking grip, stability and efficiency on dry tracks, with a choice of Medium B3 or Hard C1 compound according to driving conditions.