Bridgestone Potenza Sport is a summer tyre made in total of 188 sizes, ranging from R17 to R17 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 255/40 R21 is 50mm wider than the narrowest dimension (205) and 100mm narrower than the widest one (355). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (255mm), which results in 102mm sidewall height. In 255/40 R21, there is only one possible speed index for Bridgestone Potenza Sport - "Y", which is good for speeds up to 300 km/h.
| Shop | Product | Stock | Availability | Shipping | Price | Action |
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Bridgestone Potenza Sport ( 255/40 R21 102Y XL MGT, with rim protection (MFS) )
- In stock
£297
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Bridgestone Potenza Sport ( 255/40 R21 102Y XL MGT, with rim protection (MFS) ) | In stock | Free shipping | £297 |
Buy
mytyres.co.uk
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Potenza Sport MGT MFS XL
- In stock
£312
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Potenza Sport MGT MFS XL | In stock | Free shipping | £312 |
Buy
tyres.pneus.online.uk
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Relevant tyre tests in same or similiar dimension (255/40 R21)

| Name | |||||||
|---|---|---|---|---|---|---|---|
| Bridgestone Potenza Sport | |||||||
| Show test details | |||||||

| Name | Points total | Wet | Dry | Enviromental impact | |||
|---|---|---|---|---|---|---|---|
| Best values in test | 9,1 | 5,7 | 5,7 | 6,3 | |||
| Bridgestone Potenza Sport | 9 | 8,9 | 9,6 | 6,3 | |||
| Show test details | |||||||