Formula 1 tyre manufacturer Pirelli have abandoned plans for changes in their product this season after failing to secure the teams' agreement.
Following a series of failures this year the Italian company wanted to change the construction of the rear tyres, but such a change was blocked by some team who feared it would affect their competitiveness.
Pirelli had been concerned by a series of delaminations in early races, including one that broke the rear suspension of Lewis Hamilton's Mercedes during a Bahrain practice session, but believe they have solved the issue by strengthening the adhesive that secures the rubber to the carcass.
They explained that there was no safety issue with the current tyres, but admitted that they wanted the change because previous failures looked bad from a public relations point of view.
Red Bull, along with Mercedes, were amongst those pressuring Pirelli to change the tyres on the grounds that they were too soft, but Lotus, Ferrari and Force India refused to agree to the change.
The controversial measure would have taken unanimous support to be allowed, as there was no safety concern involved.
Unsurprisingly, the trio against the decision have been taking good care of their tyres this season - using less than anyone else - while Red Bull and Mercedes have used amongst the most.
Pirelli had intended to debut a new tyre construction at the British Grand Prix, but have abandoned the idea after the wet conditions in Canada last weekend prevented the teams doing enough running to reassure the objectors that the tyres' behaviour would not change.
A statement from Pirelli said: "This decision is due to the fact that the new tyres, which were brought to the Friday free practice sessions in Canada, could not be tested sufficiently due to rain - and that the teams failed to agree unanimously about introducing the changes.
"Instead a change in the tyre production process should now ensure that the delamination issue has been addressed."
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