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Old 22 Aug 2017, 16:27 (Ref:3760978)   #1
johnfm
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johnfm should be qualifying in the top 10 on the grid
Formula junior - tyre sizes

Chaps

Current FJ tyre sizes are L15 450 front and L15 500 rear.

Given that the HP tyres fitment guide suggests a range of 'permitted' rim widths, are there any obvious reasons why I shouldn't look to put wider tyres front (say to 500) and back (say to 550) to increase contact patch and grip?

I expect I am missing something obvious!
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