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Gripmax SureGrip Pro Sport

305/30 R21 Gripmax SureGrip Pro Sport variants


Gripmax SureGrip Pro Sport is a summer tyre made in total of 93 sizes, ranging from R18 to R18 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 305/30 R21 is 100mm wider than the narrowest dimension (205) and -10mm narrower than the widest one (295). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (305mm), which results in 91.5mm sidewall height. In 305/30 R21, there is only one possible speed index for Gripmax SureGrip Pro Sport - "Y", which is good for speeds up to 300 km/h.

305/30 R21 104 Y

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Gripmax SureGrip Pro Sport is made in 93 sizes, starting from 205/35 R18 up to 295/30 R24.

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305/30 R21 - Best summer tyres (according to tests)

#NameOur ratingTested in this dimensionTested in same width dimensionSegmentPrice
1. Continental Sportcontact 7
86%
93.3%
78.5%
Premium £333
104 Y
2. Michelin Pilot Sport 4 S! Newer model available: Michelin Pilot Sport S 5
76.8%
85%
76.3%
Premium £356
104 Y
3. Pirelli P ZERO PZ4
85.1%
79.2%
76.4%
Premium £332
100 Y + 8
4. Hankook iON evo
88.8%
Premium £300
104 Y + 1
5. Bridgestone Potenza Sport! Newer model available: Bridgestone Potenza Sport Evo
90.7%
89.9%
81.3%
Premium £361
104 Y
6. Hankook Ventus Prime 4
75.7%
82.2%
78.9%
Premium £333
104 V + 1
7. Yokohama Advan Sport V107
82.4%
92.3%
75.5%
Upper-middle £248
104 Y