225/45/15 BFG g-Force Rival - Page 3 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 01-24-2013, 10:16 PM   #41
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TR isn't showing the 225/45R15 size any more, only the 205/50R15 - wazzup!!
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Old 01-24-2013, 11:35 PM   #42
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I'm intrigued. I' ll be driving to TR to get these mounted if 225/45/15 is out within the next few weeks. Any prices confirmed?
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Old 01-25-2013, 12:27 AM   #43
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Quote:
Originally Posted by rwyatt365 View Post
TR isn't showing the 225/45R15 size any more, only the 205/50R15 - wazzup!!
They had a database issue on their nightly update. It pulled the wrong file, this is also why the prices on all the tires went up. Supposedly it will be fixed tomorrow.
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Old 01-25-2013, 10:06 AM   #44
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Hmmm no availability from TR until End of March. :(
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Old 01-25-2013, 10:37 AM   #45
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They're back on the TR site now, and they added the UTQG data, and updated the weight to 21lb for 205/50-15 & 22lb for 225/45-15.

C
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Old 01-25-2013, 11:09 PM   #46
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To get things straight, the NT01 are better than the Rivals as far as grip. Is that safe to say?

btw, $125/tire for rs3's is really pushing me to get another set.

Last edited by Kinavo; 01-25-2013 at 11:39 PM.
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Old 01-25-2013, 11:36 PM   #47
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What is your basis for that statement?
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Old 01-25-2013, 11:39 PM   #48
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The fact that the nt01 are actually rcomps. :/
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Old 01-25-2013, 11:43 PM   #49
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Then they aren't a valid option for me...
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Old 01-25-2013, 11:45 PM   #50
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Is there anyone that confirm this though? Whether its safe to say that the nt01's are"better" than the Rivals? Or is it too soon to tell.
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Old 01-25-2013, 11:48 PM   #51
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confirm what?....wtf ninja editor....

If the NT01 is rcomp, me no cares about it. At least locally, the RS3 was the tire last year....is this better than an RS3? Preliminary reports are yes. Rcomp is a diff class altogether for the racing I do.

Last edited by Enginerd; 01-26-2013 at 12:00 AM.
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Old 01-25-2013, 11:58 PM   #52
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Well, for my sake, I would still like to know how they compare.

I plan on autocrossing and tracking (DE's) with the same tires so I am looking for one that can do both well. I just ordered 9" 6UL's and would like to know which tire would best suite me. As of right now I am leaning towards the NT01's. Thats why I asked.

Last edited by Kinavo; 01-26-2013 at 12:25 AM.
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Old 01-26-2013, 12:25 AM   #53
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Isn't "better" relative. To me better is good grip, long lasting wear, and aren't slicks in the rain. I can swap wheels in winter if need be, but a small sprinkle shouldn't kill me. I was going to get rs3's, but if I can get similar grip and longer wear that is better, to me
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Old 01-26-2013, 12:28 AM   #54
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Agreed, hence the quotation marks but I was mostly referring to dry grip.
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Old 01-26-2013, 12:44 AM   #55
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Quote:
Originally Posted by Kinavo View Post
Well, for my sake, I would still like to know how they compare.

I plan on autocrossing and tracking (DE's) with the same tires so I am looking for one that can do both well. I just ordered 9" 6UL's and would like to know which tire would best suite me. As of right now I am leaning towards the NT01's. Thats why I asked.
We do wheel & tire packages with NT-01's....
And we have RS3's for $123
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Old 01-26-2013, 02:18 AM   #56
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Meh, that's NT-01 money.
Where do you get nt01's for 130/tire? I need another set and can't find any sub 160.
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Old 01-26-2013, 10:54 AM   #57
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One more thing, in case anyone cares. Rivals are made in the USA. Really. 100% and completely made, not just "assembled." I'm almost positive they are made in Tuscaloosa, AL (that was my Dad's last posting with BFG before retirement).

Speaking for myself, if given the choice between two similar products, I'll choose the one that employs my friends and neighbors.

I also think that it's far too early to tell if the Rival is "better." I suspect that because of its ease of control and durability, it actually will be shown to be "better" when the wins start coming in.
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Old 01-28-2013, 01:51 PM   #58
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Originally Posted by stuiephoto View Post
Where do you get nt01's for 130/tire? I need another set and can't find any sub 160.
discounttiredirect's ebay store had a sale about this time last year - $547 shipped for 205/50/15 NT01s with $100 rebate, so $450 for a set
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Old 01-30-2013, 04:04 PM   #59
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More impressions from Andy Hollis from the miata.net thread

Quote:
Back from Daytona...sorry for the delay. Working on getting tires to test for GRM, but dates are fluid.

At the launch event, I was the lucky dog. I was there a day early for some on-camera interviews, and while watching the BFG lead test driver gathering on-track comparison data between the Rival and a set of Z2's they had just acquired, I was asked if I wanted a go at it. Hmmm...let me think...yeah, sure ok. With only one set on hand, the Z2 was not used in the main event at all.

Preface: Prior to this I had zero on-track time at NOLA and none in an MX5 Cup car. Plus, the car didn't quite fit right (I have short legs). But with the Rivals on the car I came up to speed pretty quickly on the track...or so I thought. Their test driver and I swapped seats and he promptly showed me that I was not pushing the tires nearly enough. There was a whole nuther level that I was not exploring, as I had been backing off when I started to hear some squeal and feel some slip angle build. Turns out, the Rival is a massive talker (like the Kumho XS) and will deliver even when slip angles get quite large. The latter is similar to an R1R, except in the case of the Rival, you aren't destroying the tire as you run that large of an angle.

I then did another 6 laps or so by myself and got to the real limits. For example, 90 mph through the backside esses with total confidence. After that, we swapped to the Z2 and I tried to replicate what i had been doing with the Rival for another 10 laps. First couple of times I turned in, I had to turn right back out again....as first one end, and then other end of the car would get upset. The Z2 is very peaky in its grip delivery versus slip angle, while the Rival has a broad plateau. And with a well-balanced car like the MX5, you have to keep both ends of the car in the narrower band with the Z2 in order to stay at max lateral. That also makes it more setup dependent, whereas the Rival will likely be more setup-agnostic. I never got the car out of sorts with the Rival, but got each end to misbehave with the Z2.

In short, the Rival is a bolt-on-and-go performance enhancer for the "everyman", whereas the Z2 is more of a delicate instrument that can perhaps be careful wielded by a "skilled professional" to great effect. And some of the things that make the Z2 less confidence-inspiring on the track, may actually make it more lively on an autocross course. If you can handle it.

Bottom line: I was a full second faster on the Rival than the Z2 on a 2:08 lap time. And more consistent.

As for heat, discussion with the engineers suggested that the tire did not need a lot of heat to work, yet could tolerate it well. We did overheat a set on the BMW E46's with many back-to-back runs. I was first driver out and got back in later after a couple dozen runs (and smoking brakes) and the car drove nothing like it did earlier.

My takeaway is that BFG built a better RS3. Doesn't need heat to work. Tolerates lots of heat. Will work at least passably in the wet. Wears like iron. Easy to drive. Consistent and confidence inspiring.

Remember when the Kumho V710 first came out? It made heros out of zeroes. The Rival is like that in its driveability, if not in overall grip level.

Oh yeah, and for those claiming the Rival is some sort of cheater r-comp: baloney. Not only does it meet the rules, the 200 treadwear is no joke. The thing wears even better than an RS3 despite being abused. Truly incredible. And when compared on a skid pad to the R1-S r-comp and Comp 2 street tire, it fell much closer in grip to the Comp 2. .95 vs 1.0 vs 1.2g.
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Old 02-01-2013, 08:43 AM   #60
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Damn, I need these on my ChumpCar with some 9's, too bad I just bought the ZII's...
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