Originally Posted By: turboseize
With Uniroyal, it depends which Uniroyal you get. American Uniroyal is owned by Michelin, Belgian Uniroyal belongs to Continental. I only have experience with the latter.
Belgian/European Uniroyal have for ages had the marketing the claim "the rain tyre", and this is one of the very few times advertising and marketing hold true. I drive their Rain Expert in 195/69R15 88V on my Saab 900 turbo in spring and autumn. This Tyre is very good in the wet and plain
insanely impressive regarding aquaplaning. It also rides very comfortably.
This comes at a price: wet traction requires a soft rubber compound, so they wear fast (even by european standards). Aquaplaning resistance means lots of negative space in the very deep profile, which means dry traction and handling suffers. (A lot!) Comfortable rides means soft sidewalls, which impairs steering response and thus high-speed* stability.
If you drive a lot at highway speeds and live in a cold-wet climate, they are excellent. If you want a crisp handling, sticky tyre for spirited drives on funny mountain roads on a hot summers day, they could not be worse. Yes, on a hot summer day and some windy mountain road, they feel worse than a winter tyre. But in the wet, on the other hand, they're [censored] brilliant. Just make sure you know what you are getting yourself into. This is a rain tyre. A full wet. (And like a full wet racing tyre, a few laps at a racetrack in the dry will kill it. It is
that soft. I know a guy who relied the weather forecast, showed up to a track day with Uniroyals on, but then the clouds drifted away and they had a sunny day. Ruined a new set of tyres in less than 300km.)
I have written an extensive review on them on my blog. Articles are in German, but google translate might help. In case it doesn't, feel free to ask me for clarifications.
first impressions:
https://turboseize.wordpress.com/2016/04/18/winterreifen-sommerreifen-regenreifen/
after 15.000km:
https://turboseize.wordpress.com/2016/09/17/reifenerfahrungen-uniroyal-rain-expert/
*not legal anywhere on the planet except certain roads in Germany. But in case you are interested, the delayed steering response makes the driver exaggerate his steering inputs when keeping in his lane at speed around and above 200km/h. The driver makes a slight correction, the car does not follow, so he turns in more. Then, the car reacts, but steering input was to great, so the driver has to counteract. And as again, the input is delayed, he is likely to overcorrect, meaning the car will start to sway... There is only one remedy: keep cool, aim grossly for a line and then let the car dance around that line. Do not get seduced to try to drive a nice line.. you can't, and you will make it worse. Stay cool and just ride it out.
This perfectly mirrors my experience with Rain Expert, albeit in 185/60 r14. Mounted on wife's Sporting they lasted 18K km. Guess 4 months of dry +30 weather didn't help. They do make excellent winter tyre for us southerners though.