Michelin Primacy 4 is a summer tyre made in total of 384 sizes, ranging from R14 to R14 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 315/30 R21 is 160mm wider than the narrowest dimension (155) and -10mm narrower than the widest one (305). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (315mm), which results in 94.5mm sidewall height. In 315/30 R21, there is only one possible speed index for Michelin Primacy 4 - "Y", which is good for speeds up to 300 km/h. In 315/30 R21, Primacy 4 usually competes against Ecocontact 6, which is a tyre from Continental with a rating of 0%, compared to 0% of the Michelin in question.
| Shop | Product | Stock | Availability | Shipping | Price | Action |
|---|
| # | Name | Our rating | Tested in this dimension | Tested in same width dimension | Segment | Price |
|---|---|---|---|---|---|---|
| 1. | Michelin Pilot Sport 4 S! Newer model available: Michelin Pilot Sport S 5 | Premium | £383 105 Y + 2 | |||
| 2. | Pirelli P ZERO PZ4 | Premium | £349 105 Y + 7 | |||
| 3. | Bridgestone Turanza 6 | Premium | £247 105 Y | |||
| 4. | GoodYear Eagle F1 Supersport | Premium | £325 105 Y | |||
| 5. | Yokohama Advan Sport V107 | Upper-middle | £264 105 Y |