These unstudded winter tyres from Pirelli have a diameter of 17". The load index is 55, .
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120/60ZR17 (55W) Pirelli Diablo Rosso IV 120/60R17 (55W) | Protyre
Tirendo
Pirelli Diablo Rosso IV ( 120/60 ZR17 TL (55W) M/C, Front wheel )
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