Don
Site Moderator
Posts: 2704
Joined: Thu May 10, 2012 3:55 pm
Location: Biloxi MS

A New Tire For Us!

Tue May 29, 2018 8:30 am

While researching 175/55R15 tires to go on my new wheels, I ran across a new Eco Continental tire in 145/65R15 which is the OEM size for the front of our cars. The good news is . . . . they are only $85 at Tire Rack!!

Don
2012 iMiEV SE Premium, White
2012 iMiEV SE, White
2017 Chevy Volt Premier
2014 Ford Transit Connect XLT SWB wagon, 14,000 miles
1979 Honda CBX six into six

JoeS
Site Moderator
Posts: 3513
Joined: Thu Dec 15, 2011 5:47 am
Location: Los Altos Hills, California

Re: A New Tire For Us!

Tue May 29, 2018 11:39 am

Hi Don, thanks for that. How about All-Season Vredesteins for $74.23, also at Tire Rack?

https://www.tirerack.com/tires/tires.jsp?tireMake=Vredestein&tireModel=Quatrac+5&partnum=465TR5QT5&vehicleSearch=false&fromCompare1=yes

I hadn't been looking recently - what happened to cause our availability improvement?
EVs: 2 Wht/Blu SE Prem., '13 Tesla MS85, 3 156v CorbinSparrows (2 Li-ion), 24v EcoScoot(LiFePO4)
EV Conv: 156v '86 Ram PU, 144v '65 Saab 96
Hybrids: 48v1kW bike
ICE: '88 Isuzu Trooper. Mothballed: '67 Saab (orig.owner), '76 MBZ L206D RHD RV

bradleydavidgood777
Posts: 169
Joined: Tue Aug 29, 2017 11:55 am
Location: Media, PA

Re: A New Tire For Us!

Wed May 30, 2018 8:41 am

I won't need tires for a long time but I just thought I really like the dunlops. I think they handle really well. I was buying dunlop signature series for my mazda 3 for many years before getting this car.

I was really surprised at the grip both dry and wet for such small tires.

Seems like they wear well too right?

And that's important for such a light car....I don't know if I would buy anything else. Might be worth a couple hundred dollars to stick to the road well.

Maybe the Continentals are just as good but I don't think I'd be willing to try Yokos or some other cheaper brand.
2017 I-Miev

JoeS
Site Moderator
Posts: 3513
Joined: Thu Dec 15, 2011 5:47 am
Location: Los Altos Hills, California

Re: A New Tire For Us!

Wed May 30, 2018 9:22 am

bradleydavidgood777, the OEM Dunlop Enasave tires are very specific: they are Low Rolling Resistance tires. I've never had a problem with them or their handling, but you might peruse this Wheel-Tires subforum for others' opinions. Lifespan on these tires is unfortunately not all that great as they usually wear out by 25,000 miles, and they cost an arm and two legs. Remember, front and rear are different and the wheels are not interchangeable. I run mine at the upper end of the tire pressure limit, as I believe (no quantitative backup to support this) that not only does the range improve but also that the car handles noticeably better.
EVs: 2 Wht/Blu SE Prem., '13 Tesla MS85, 3 156v CorbinSparrows (2 Li-ion), 24v EcoScoot(LiFePO4)
EV Conv: 156v '86 Ram PU, 144v '65 Saab 96
Hybrids: 48v1kW bike
ICE: '88 Isuzu Trooper. Mothballed: '67 Saab (orig.owner), '76 MBZ L206D RHD RV

jray3
Posts: 1516
Joined: Tue Dec 06, 2011 1:05 am
Location: Tacoma area, WA
Contact: Website

Re: A New Tire For Us!

Wed May 30, 2018 9:46 am

JoeS wrote:I hadn't been looking recently - what happened to cause our availability improvement?

I think we have the Smart Car to thank for that.

I'm considering some sinning. Since the fronts wear out faster and the understeer is so pronounced, whaddaya think about a set of grippier, non LRR tires on the front only? That should improve handling without changing wheels and using adaptors, etc, and with the rears carrying most of the weight, that's also where LRR matters more. Anybody tried this, and how great is the risk of triggering the safeties? I'm assuming that the same size will be close enough between different manufacturers, and we do have enough wiggle room as the car tracks wheelspeed to accommodate different degrees of wear between front and rear.

Thx,
Jay
2012 i-SE "MR BEAN" 90,000 miles
2000 Mazda Miata EV, 78 kW, 17 kWh
1983 Grumman Kurbwatt EV,170 kW, 32 kWh
1983 Mazda RX-7 EV 43 kW 10 kWh
1971 "Karmann Eclectric" EV 240 kW 19 kWh
1965 Karmann Ghia Cabriolet

Luddite
Posts: 33
Joined: Tue Apr 11, 2017 8:34 am
Location: Scotland, UK

Re: A New Tire For Us!

Wed May 30, 2018 11:12 am

Don wrote:While researching 175/55R15 tires to go on my new wheels, I ran across a new Eco Continental tire in 145/65R15 which is the OEM size for the front of our cars. The good news is . . . . they are only $85 at Tire Rack!!

Don


This tyre is available in the UK too - but might not be as eco as it seems.
It has an F rating for rolling resistance - where A is best and G is worst.

"Over the life of the tyre, fitting an A rated tyre could save you up to 6 litres more fuel every 625 miles - when compared to a G rated tyre."

https://www.blackcircles.com/catalogue/ ... e=11174460

The more expensive dunlops have a C rating.
https://www.blackcircles.com/catalogue/ ... e=31070240

Might be worth spending the extra $ if you are hypermiling or going on lots of long journeys.
Looks like the continentals perform better in wet conditions though...
..........................................................
2011 Peugeot Ion

bradleydavidgood777
Posts: 169
Joined: Tue Aug 29, 2017 11:55 am
Location: Media, PA

Re: A New Tire For Us!

Thu May 31, 2018 6:05 am

Yes thats another good point about the Dunlops, I think they roll very nice. And makes sense that would translate to savings and pretty significant ones. I broke them free this morning around a traffic circle because I didn't want to brake - it was spitting rain...was a little scary for a split second looking at the curb I was headed for but then I tapped the brake and let go and it came right back in line!
2017 I-Miev

DBMandrake
Posts: 54
Joined: Mon Mar 20, 2017 4:57 am
Location: Scotland

Re: A New Tire For Us!

Fri Jun 01, 2018 3:36 am

JoeS wrote:Hi Don, thanks for that. How about All-Season Vredesteins for $74.23, also at Tire Rack?

https://www.tirerack.com/tires/tires.jsp?tireMake=Vredestein&tireModel=Quatrac+5&partnum=465TR5QT5&vehicleSearch=false&fromCompare1=yes

I hadn't been looking recently - what happened to cause our availability improvement?

I've had Vredestein Quatrac 5's on my Ion since last October and I'm very happy with them as an All Season tyre in the UK.

I used them through the freak ice and snow this winter and they handled it admirably, I didn't actually get stuck once, while a lot of other cars around me did! I'm certain I would have been stuck in the same conditions with the Hankook Kinergy Eco summer tyres that were on it before.

They have very deep tread blocks and loads of tiny sipes so also perform excellently on roads with standing water. The difference in grip between dry and wet roads is fairly minimal, even with running water on the surface.

They are a little bit of a compromise above 20C on dry summer roads though - they start to get slightly "squidgy" with too much power around tight corners, presumably due to the softer winter rubber, so they don't quite have the same outright grip or handling as dedicated summer tyres, but with the pressure bumped up to 40psi a lot of that disadvantage is negated, and they definitely feel a lot better at 40 than 36psi.

I've found about 40psi is optimal in summer and 38psi in winter on these tyres.

As I can't be arsed with changing tyres every six months or trying to find a second set of rims, and the car is used mainly for a daily work commute and shopping runs, the small sacrifice of summer performance being not quite as good as a dedicated summer tyre is a worthwhile compromise for me, and probably makes me drive a bit more economically as well...

Their rolling resistance rating is actually better than the Hankook Kinergy "Eco" tyres that were on the car before that claim to be low rolling resistance!

I've only done 6000 miles on them so far but there is no real sign of wear yet, apart from the slight normal feathering of the surface of the tread.
- Simon

EV: 2011 Peugeot Ion
ICE: 1997 Citroen Xantia V6

kkanoski91
Posts: 3
Joined: Sat Jun 02, 2018 6:01 am

Re: A New Tire For Us!

Sat Jun 02, 2018 6:53 am

Will the slightly wider size work on the stock front rims? Are the rims different on the car - front vs. back?

Quatrac 5 - Size: 155/60R15

Grand Touring All-Season


Size: 155/60R15


It is within a few mm of stock overall height.

thanks.
2012 i-miev se

DBMandrake
Posts: 54
Joined: Mon Mar 20, 2017 4:57 am
Location: Scotland

Re: A New Tire For Us!

Sat Jun 02, 2018 7:21 am

kkanoski91 wrote:Will the slightly wider size work on the stock front rims? Are the rims different on the car - front vs. back?

Quatrac 5 - Size: 155/60R15

Grand Touring All-Season


Size: 155/60R15


It is within a few mm of stock overall height.

thanks.

Front and rear wheel rims are completely different in width.

I'd strongly suggest against substituting different tyre sizes, especially at only one end of the car - even a small relative difference in rolling radius between front and rear tyres will cause the traction control system to falsely activate, cutting power and regeneration.

I had this issue with fitting new tyres to the rear (full height tread blocks) while leaving old worn tyres on the front - despite the sizes of the tyre being the same the wear on the front tyres reduced the radius enough to trigger the traction control. (I later fitted new front tyres as well, which solved the problem)

I'm not sure why you'd want to fit different sizes - the Quatrac 5 are available in the original OEM sizes, and that's what I fitted to mine!
- Simon

EV: 2011 Peugeot Ion
ICE: 1997 Citroen Xantia V6

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