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Informal document No . GRRF-51-18 (59th GRRF, 30 January - 3 February 2006, agenda item 5.5.). New Categories of Agricultural Tyres ‘IF’ : Improved Flexion Tyre ‘VF’ : Very High Flexion Tyre and UN/ECE Regulation No.106. Welcome.

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Welcome

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  1. Informal document No. GRRF-51-18 (59th GRRF, 30 January - 3 February 2006, agenda item 5.5.) New Categories of Agricultural Tyres ‘IF’ : Improved Flexion Tyre ‘VF’ : Very High Flexion Tyreand UN/ECE Regulation No.106 Welcome T h e E u r o p e a n T y r e a n d R i m T e c h n i c a l O r g a n i s a t i o n

  2. ‘IF’ : Improved Flexion Tyre ‘VF’ : Very High Flexion TyreObjectives of these concepts Cover the user’s needs  Work at low pressure in the fields to reduce the soil compaction Run on the road without adjusting the inflation pressure depending on the speed T h e E u r o p e a n T y r e a n d R i m T e c h n i c a l O r g a n i s a t i o n

  3. ‘IF’ : Improved Flexion Tyre ‘VF’ : Very High Flexion TyreMain features More resistant carcasses than corresponding standard tyres operate at higher deflections run without any adjustment of the inflation pressure in the field and on the road T h e E u r o p e a n T y r e a n d R i m T e c h n i c a l O r g a n i s a t i o n

  4. ‘IF’ : Improved Flexion Tyre ‘VF’ : Very High Flexion TyreTechnical Challenges Endurance Wear Service Life Operating Temperature Road Handling T h e E u r o p e a n T y r e a n d R i m T e c h n i c a l O r g a n i s a t i o n

  5. IF&VF ‘IF’ : Improved Flexion Tyre ‘VF’ : Very High Flexion TyreHow does it work? Current Standard T h e E u r o p e a n T y r e a n d R i m T e c h n i c a l O r g a n i s a t i o n

  6. ‘IF’ : Improved Flexion Tyre ‘VF’ : Very High Flexion TyreLoad/pressure relationship VF :+ 40% IF : + 20% T h e E u r o p e a n T y r e a n d R i m T e c h n i c a l O r g a n i s a t i o n

  7. ‘IF’ : Improved Flexion Tyre ‘VF’ : Very High Flexion TyreBenefits Low soil compaction Improved crop yield productivity Improved wet and dry traction Time and fuel saving Improved ride comfort Safety through road handling T h e E u r o p e a n T y r e a n d R i m T e c h n i c a l O r g a n i s a t i o n

  8. ‘IF’ and ‘VF’ TyresProposed amendment of UN/ECE Regulation 106(Document Trans/WP29/GRRF/2005/15/Rev1) Definitions ‘IF’ and ‘VF’ tyres Marking: ‘IF’ or ‘VF’ before the nominal section width for example : IF 710/70 R 42 or VF 710/70 R 42 No variation of load depending on the speed => Table in annex 7 is not applicable T h e E u r o p e a n T y r e a n d R i m T e c h n i c a l O r g a n i s a t i o n

  9. New Categories of Tyres ‘IF’ : Improved Flexion Tyre ‘VF’ : Very High Flexion Tyreand UN/ECE Regulation 106 Thank for your attention! Do you have any questions? T h e E u r o p e a n T y r e a n d R i m T e c h n i c a l O r g a n i s a t i o n

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