225/45/15 & 245/40/15 Maxxis RC-1 - Page 3 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 10-25-2014, 10:57 AM   #41
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How many days are in your count?
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Old 10-26-2014, 06:48 PM   #42
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Too many
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Old 11-15-2014, 04:59 AM   #43
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Anyone can tell me where they're made ?
FYI, they're made in Taiwan...
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Old 11-15-2014, 10:16 AM   #44
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I love the idea of these tires as a good Hoosier alternative, I found out about Maxxis through a friend that races his GTO and a host of BMWs (e30 and e36). Then I saw a bunch of guys on the bike trails with Maxxis tires as well.

I wish they made these pre-grooved for street use, but as I was discussing in my other thread, I don't know if road use will get them to operating temps and they might just be dangerous for my needs.
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Old 11-15-2014, 12:45 PM   #45
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Originally Posted by Mazdaspeeder View Post
I love the idea of these tires as a good Hoosier alternative, I found out about Maxxis through a friend that races his GTO and a host of BMWs (e30 and e36). Then I saw a bunch of guys on the bike trails with Maxxis tires as well.

I wish they made these pre-grooved for street use, but as I was discussing in my other thread, I don't know if road use will get them to operating temps and they might just be dangerous for my needs.
The RC-1's are perfectly happy on the street. Hand grooving makes them very noisy but that is more than offset by filling pulled or 25mm fenders with rubber and not needing ricer offsets. 245's on 10's under a 300whp Miata is just pure goodness.
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Old 11-15-2014, 01:07 PM   #46
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And do the 10" wheels fit under NB fenders with a pull, or are flares needed? I don't see the 10" listed on the site either
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Old 11-20-2014, 01:08 PM   #47
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I just got an email from John Wu saying the tires are on the water but that the Long Beach workers are throwing another fit so well be at their mercy when the container is available, should be soon though.
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Old 11-20-2014, 01:23 PM   #48
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Default 245/40/15 RC-1 Miata fitment

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Originally Posted by Mazdaspeeder View Post
And do the 10" wheels fit under NB fenders with a pull, or are flares needed? I don't see the 10" listed on the site either
NB on 15x10: Flat roll front and rear, very slight pull rear
NA on 15x10: Mini flares or heavy pull front and rear.

Few know this but our 15x10 +25 offset was optimized for this exact tire, three years before it was available, not the 275/35/15 Hoosier as most folks would guess.
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Old 11-20-2014, 06:16 PM   #49
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As a review since previous information varied, are those the only mods needed? I've wanted to go 15X10 for the meatiness but I thought there were other suspension or control arm mods needed.

Asking about NB's specifically. Looks sick on that red one, and I'm sure grip is amazing.
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Old 11-20-2014, 06:31 PM   #50
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Got it. So now i just need to find a place that will hand groove these things.
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Old 11-20-2014, 07:27 PM   #51
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Got it. So now i just need to find a place that will hand groove these things.
No shop will groove a tire that has been run. They're concerned about gravel damaging the blades of the grooving tool. Has to be a sticker. Some will want them mounted, others not. Look for shops that do dirt track stuff. They all hand groove tires.
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Old 11-20-2014, 07:37 PM   #52
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Cool thanks for the tips.

Plenty of good 'ol boys on Gasoline Alley.
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Old 11-21-2014, 09:34 PM   #53
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Tires have Landed!!!!!!
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Old 11-22-2014, 07:53 PM   #54
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Old 11-23-2014, 07:02 PM   #55
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Default 245/40/15 RC-1's

We've been hiding these for a while now. Testing completed a few months ago, green light for production and boom, they're here. The final production version seen here is about 15mm wider than the P1 (prototype 1) shown in the OP. Squished but will work on 9's but really happiest on 10's.

Buy yours here Automotive, Victra RC-1-



Sonny behind the wheel, testing at Buttonwillow back in October

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Old 11-23-2014, 08:30 PM   #56
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Awesome.
Emilio, thank you for all your work in helping to bring these to the market.

-Ryan
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Old 11-23-2014, 09:57 PM   #57
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I look forward to getting some time on these tires. Thanks for making this happen Emilio!
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Old 11-23-2014, 10:56 PM   #58
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What type or fender work will be needed to put the 245's on an NB with 15x9s? I just mounted up a set of 225's for this weekend but might go to 245's in the future. Again, thanks for making this happen.
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Old 11-24-2014, 12:43 AM   #59
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Originally Posted by linkless View Post
What type or fender work will be needed to put the 245's on an NB with 15x9s? I just mounted up a set of 225's for this weekend but might go to 245's in the future. Again, thanks for making this happen.
Flat roll on NA & NB on 9 or 10. Heavy pull on NA.
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Old 11-24-2014, 01:15 AM   #60
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For a track car, what's the approximate hp break where the extra inertia and rotating mass of the 10" wheel with wider tire makes sense? Compare 9" UL with 225 RC1 vs 10" UL and 245. Consider a track like Buttonwillow or Laguna seca on a 2000# car.
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