RoadX Rxquest C31
EU tyre label for every size: 9 sizes of this summer tyre compared with the rest of the market
The RoadX Rxquest C31 is a summer tyre for vans and light trucks. Its supplier has registered it in the EU product database (EPREL) in 9 sizes (13 registrations including load and speed variants), for 8″ to 15″ rims.
Wet grip is rated B–D depending on size, fuel efficiency C–D and external rolling noise 70 dB.
The label depends on the size. Sorted by wet grip, then fuel efficiency, then noise, the best-labelled size on sale is 185R14C 8PR (Wet grip B · Fuel efficiency C · 70 dB), the weakest 155R13C 8PR (Wet grip D · Fuel efficiency D · 70 dB).
On the EU market since April 2022; the earliest production week registered is 03/2022.
How it compares in its sizes
We compared each size with all other summer tyres of the same size and class in EPREL (9 sizes had at least four rivals). A size scores when its label is at least as good as 75% of them.
Strongest point: rolling noise.
All 9 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 |
|---|---|---|---|---|---|---|
| 8″ rims | ||||||
| 155R12C 8PRC2 | 88/86Q | D11% | D68% | 70 dBB91% | — | 22/2024 |
| 155R13C 8PRC2 | 90/88S | D16% | D67% | 70 dBB95% | — | 22/2024 |
| 165R13C 8PRC2 | 94/93S | D16% | C95% | 70 dBB97% | — | 22/2024 |
| 175R13C 8PRC2 | 97/95S | D9% | C95% | 70 dBB95% | — | 22/2024 |
| 175R14C 8PRC2 | 99/97Q | D10% | C98% | 70 dBB91% | — | 06/2024 |
| 185R14C 8PRC2 | 102/100Q · 102/100Q | B93% | C94% | 70 dBB97% | — | 03/2022 |
| 195R14C 8PRC2 | 106/104Q · 106/104Q | B94% | C95% | 70 dBB97% | — | 03/2022 |
| 195R15C 8PRC2 | 106/104R · 106/104R | B95% | C99% | 70 dBB96% | — | 03/2022 |
| 15″ rims | ||||||
| 205/70R15C 8PRC2 | 106/104R · 106/104R | B90% | C94% | 70 dBB96% | — | 03/2022 |
Questions
Is the RoadX Rxquest C31 a quiet tyre?
Its declared rolling noise is 70 dB in every size. In 100% of the sizes we could compare, it is at least as quiet as three quarters of same-size rivals.
How good is the RoadX Rxquest C31 in the wet?
Its wet grip class is B–D. In 44% of compared sizes that is at least as good as three quarters of same-size rivals.
Is the RoadX Rxquest C31 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 RoadX Rxquest C31 launched?
It has been on the EU market since April 2022. The earliest production week in its registrations is 03/2022; the DOT code on the sidewall shows the week and year of your tyre.
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Source: EPREL, the European Commission’s product registry for energy labelling — 13 registrations, data as of 23 October 2026. Suppliers have updated 0 of these registrations since first publication. Label values are the supplier’s declaration.