A new generation of LRR tires coming soon (plus: video of coastdown comparison)

[NeilBlanchard]

So, I'm guessing the tire that they are using "some" of the new technology in, is the Nokian eNTYRE.

[Piwoslaw]

With the European Low RR tire mandate, companies finally have the incentive to look for new technologies. :happy:

[bgd73]

Originally Posted by RobertSmalls

Well, their low-speed coastdown test is pretty representative of CRR, and it looks like they've achieved somewhere around a 30% improvement over the already-good Hakkapeliittas, which are in turn 30% more efficient than the stickiest "LRR" tire Nokian could find.

It's crazy that a tire that came out over ten years ago (the original Insight tire) is still the most efficient passenger car tire out there. I hope the new Nokians have lower RR than it, and that they come out soon in a narrow, 14" size.

I run hakka 1, nokians. studless winter, 89 t rated...could be ten years old..
they stopped in time. Never ran anything like them.. they outran thier production time,and still going.

extinct.

the car they are on pulverized everything, awd sube, low and high range independent all the way around. Car is a shredder...the nokians stopped in time.

They are way out of my league now,been eyeing a common name that does not change production every two days..

some bf goodrich, 89 t, directional.. they look alot like hakka 1..but will not mix and match.

if you can afford thier ever changing science, go for it, nokian does not play around.

[cfg83]

Neil -

Originally Posted by NeilBlanchard

So, I'm guessing the tire that they are using "some" of the new technology in, is the Nokian eNTYRE.
...

I'm keeping my eyes open for these.

CarloSW2

[MetroMPG]

Originally Posted by mtgeekman

Just put on some brand new RE92s on my Insight.

Drat... what did you do with your old RE92's? I'm in the hunt!

Would like to test how much of a difference PSI makes as far as RR goes...

I did a crude, and arguably not very scientific coastdown test comparing a range of pressures in two different cars.

FYI: Snapshot: effect of tire pressure on rolling resistance - MetroMPG.com

... and... http://ecomodder.com/forum/showthrea...ures-2721.html

[Bicycle Bob]

On the issue of LRR vs grip for safety, in my experience, it is better to have less grip but a gentle break-away. That way, I'm confident enough to use it all up in an emergency. In real life, people often panic and don't even brake before an accident, let alone steer creatively and skillfully. One has to be in practise to approach the limit of any tire, and one that gives safe practise at lower speeds provides many more opportutities to stay fresh. One thing I really like about economy cars is that you can drive them flat-out for much longer bursts than you can get away with in a supercar. There's some challenge to the driver in normal traffic - the machine does not guarantee a "win."