HIGH SPEED means that the tyres are D speed rated and can operate at speeds up to 70 km/h or at inflation pressures as low as 0.6 bar. Even at lower operating speeds and for tractors that have a top speed of 30, 40 or 50Km/h these tyres can carry up to 9.5% more load at same inflation versus conventional DT818 tyres. Furthermore, DT818 HIGH SPEED can carry same loads as DT818 at lower inflation pressure thereby, elongating the footprint generating more traction and pull so that work gets completed faster and at lower cost.

Optitrac DT818 HIGH SPEED has a tuned and modified casing and rubber construction required to overcome the increased strains and forces on the tyres at 70 km/h. However, DT818 HIGH SPEED features the popular Optitrac tread design concept and the new tyres have identical external dimensions and non-skid level as the regular DT818 50 km/h A8/B speed tyres making it easy to convert from regular tyres to the new DT818 HIGH SPEED ones.

Phil Stanton Goodyear Farm and OTR Manager says "The knowledge and the technology we gained with the development of the Optitrac R+ tyre range has been used to ensure that the Optitrac DT818 HIGH SPEED meets the performance requirements of today's professional farmers and contractors, giving them the levels of traction and comfort they need to enable them to work more efficiently"

The new Optitrac DT818 can be easily recognized by a distinctive "HIGH SPEED" marking on the sidewall.

Market introduction of the new Optitrac DT818 HIGH SPEED is in 2 phases:

First 6 sizes to change: (Market release: 1st half of 2009)
• 650/65R42 165D/168A8
• 650/65R38 157D/160A8
• 600/65R38 153D/156A8
• 540/65R30 143D/146A8
• 540/65R28 142D/145A8
• 480/65R28 136D/139A8

Followed by a further 7 sizes: (Market release: 2nd half of 2009)
• 540/65R38 147D/150A8
• 600/65R34 151D/154A8
• 540/65R34 145D/148A8
• 540/65R24 140D/143A8
• 480/65R24 136D/139A8
• 440/65R28 131D/134A8
• 440/65R24 128D/131A8

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