Pirelli Diablo Supercorsa V2 Front 120/70ZR17 & Rear 180/55ZR17 Road & Racetrack Motorcycle Tires w/Keychain - 120/70-17 180/55-17 Two Pack 3.8 out of 5 stars 11 $359.96 $ 359 . 96 Maxxis Premitra HP5 belongs to the Lowcost segment and is made by a manufacturer from Taiwan. It is made in total of 56 sizes, 195/50 R15 being the smallest and 255/45 R18 the largest. This tyre was featured in tests 28 times, first test was carried in 2017. This model received the best possible rating in 7 tests. The 2 things that affects is that each rotation of the tire will move the car further. And that will mean that your speedometer and odometer will read slightly incorrectly. It is a small difference. But it is a difference you need to be aware of. Looking at what the Continental site has to say, the 60 height tires have: Revs Per Mile 753 while
120/80-R17 tires are 0.2 inches (5 mm) larger in diameter than 170/55-R17 tires and the speedometer difference is 0.8%

190/55-R17 tires are 0.87 inches (22 mm) larger in diameter than 170/55-R17 tires and the speedometer difference is 3.4%

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170 60 r17 vs 180 55r17