Roadstone CP321
EU tyre label for every size: 13 sizes of this summer tyre compared with the rest of the market
The Roadstone CP321 is a summer tyre for vans and light trucks. Its supplier has registered it in the EU product database (EPREL) in 13 sizes (13 registrations including load and speed variants), for 14″ to 16″ rims.
Wet grip is rated C in every size, fuel efficiency C–D and external rolling noise 71–72 dB.
The label depends on the size. Sorted by wet grip, then fuel efficiency, then noise, the best-labelled size on sale is 205/75 R16C (Wet grip C · Fuel efficiency C · 71 dB), the weakest 195/75 R16C (Wet grip C · Fuel efficiency D · 72 dB).
On the EU market since September 2003; the earliest production week registered is 30/2003.
How it compares in its sizes
We compared each size with all other summer tyres of the same size and class in EPREL (13 sizes had at least four rivals). A size scores when its label is at least as good as 75% of them.
Strongest point: fuel efficiency. Weakest point: wet grip, where most same-size rivals do as well or better.
All 13 sizes
The small figure under each class is the share of same-size, same-season tyres this size matches or beats (“–” when fewer than five tyres share the size).
| Size | Load / speed | Wet | Fuel | Noise | Snow / ice | Production from |
|---|---|---|---|---|---|---|
| 14″ rims | ||||||
| 175/65R14CC2 | 90/88T | C43% | D56% | 72 dBB59% | — | 30/2003 |
| 15″ rims | ||||||
| 195/70R15CC2 | 104/102S | C47% | D40% | 72 dBB58% | — | 30/2003 |
| 225/70R15CC2 | 112/110R | C44% | C92% | 72 dBB63% | — | 30/2003 |
| 16″ rims | ||||||
| 185/75R16CC2 | 104/102T | C48% | D45% | 72 dBB55% | — | 30/2003 |
| 195/60R16CC2 | 99/97T | C42% | D50% | 72 dBB49% | — | 30/2003 |
| 195/65R16CC2 | 104/102T | C46% | C96% | 72 dBB58% | — | 30/2003 |
| 195/75R16CC2 | 110/108Q | C42% | D33% | 72 dBB54% | — | 30/2003 |
| 205/65R16CC2 | 107/105R | C44% | C94% | 72 dBB59% | — | 30/2003 |
| 205/75R16CC2 | 110/108R | C39% | C91% | 71 dBB80% | — | 30/2003 |
| 215/65R16CC2 | 109/107T | C41% | C91% | 72 dBB59% | — | 30/2003 |
| 215/75R16CC2 | 116/114Q | C40% | C91% | 72 dBB60% | — | 30/2003 |
| 225/65R16CC2 | 112/110T | C41% | C91% | 72 dBB59% | — | 30/2003 |
| 235/65R16CC2 | 115/113T | C38% | C85% | 72 dBB58% | — | 30/2003 |
Same label values, different brand
These tyres have exactly the same label values as the Roadstone CP321 in most of the sizes they share, and both are registered in EPREL by the same manufacturer. Identical labels do not prove two tyres are the same: classes are broad. But consistent matches across many sizes point to a shared production family.
- Nexen CP321identical label in 13 of 13 shared size and load/speed variants
Questions
Is the Roadstone CP321 a quiet tyre?
Its declared rolling noise ranges from 71 dB to 72 dB (median 72 dB). In 8% of the sizes we could compare, it is at least as quiet as three quarters of same-size rivals.
How good is the Roadstone CP321 in the wet?
Its wet grip class is C. In 0% of compared sizes that is at least as good as three quarters of same-size rivals.
Is the Roadstone CP321 suitable for snow?
No size carries the 3PMSF symbol, so it is not certified for severe snow. In countries with winter tyre rules it does not count as a winter tyre.
When was the Roadstone CP321 launched?
It has been on the EU market since September 2003. The earliest production week in its registrations is 30/2003; the DOT code on the sidewall shows the week and year of your tyre.
More from Roadstone
Source: EPREL, the European Commission’s product registry for energy labelling — 13 registrations, data as of 23 October 2026. Suppliers have updated 13 of these registrations since first publication. Label values are the supplier’s declaration.