17x7 and slicks 225/45 for autox?

jet3 · 03-09-2017, 01:18 PM

Hi. I'm from Perú.

I have a wheel set just for autocross: Konig 17x7 but i don't know what tires pick. I only have 2 options:

Federal 595 RS-RR 215/45/17 ($127 per tire) or

Maxxis RC1 (slick tw 100) 225/45/17 ($140 per tire)

Wich of this 2 will be better with the 7" rim?

Thanks and greetings from Perú!

jet3 · 03-10-2017, 10:32 PM

Somebody help me, please :/

Donutz · 03-11-2017, 08:48 AM

I think a 225 rcomp on a 7" wheel is too big. I used to run a 225 on a 7.5" wheel and there were no issues with fitment. Also, not sure if an rcomp is a good choice for autocross. I used to run them on a shorter track that had only a few hard braking zones; it was difficult to get temperature into the tires early in my run.

feuer · 03-20-2017, 08:37 PM

I believe that you asked this questing somewhere else already. Anyhow, as Donutz said 215 will be better for 7" rim and Rcom tired probably won't get hot in autocross.

r4dr · 03-21-2017, 10:42 AM

Doing some quick searching, the Maxxis RC-1 looks like a road course slick. I don't think either of those tires are good choices for autox.

TomD335xicoupe · 03-21-2017, 12:17 PM

Hoosier A7 for griiiiiiiiipy AX if you just want to kick your friends collective asses but check with your rules about that type tire SCCA AX rules are strict about tred ware numbers

03-09-2017, 01:18 PM	#1
jet3 New Member 4 Rep 9 Posts Drives: E30 Join Date: Mar 2017 Location: Lima iTrader: (0)	17x7 and slicks 225/45 for autox? Hi. I'm from Perú. I have a wheel set just for autocross: Konig 17x7 but i don't know what tires pick. I only have 2 options: Federal 595 RS-RR 215/45/17 ($127 per tire) or Maxxis RC1 (slick tw 100) 225/45/17 ($140 per tire) Wich of this 2 will be better with the 7" rim? Thanks and greetings from Perú!
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03-10-2017, 10:32 PM	#2
jet3 New Member 4 Rep 9 Posts Drives: E30 Join Date: Mar 2017 Location: Lima iTrader: (0)	Somebody help me, please :/
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03-11-2017, 08:48 AM	#3
Donutz Lieutenant 140 Rep 476 Posts Drives: 335i Join Date: Sep 2015 Location: Toronto, eh iTrader: (2)	I think a 225 rcomp on a 7" wheel is too big. I used to run a 225 on a 7.5" wheel and there were no issues with fitment. Also, not sure if an rcomp is a good choice for autocross. I used to run them on a shorter track that had only a few hard braking zones; it was difficult to get temperature into the tires early in my run.
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03-20-2017, 08:37 PM	#4
feuer Major General 4276 Rep 9,206 Posts Drives: wife crazy! Join Date: Apr 2015 Location: Chicago, IL iTrader: (5)	I believe that you asked this questing somewhere else already. Anyhow, as Donutz said 215 will be better for 7" rim and Rcom tired probably won't get hot in autocross.
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03-21-2017, 10:42 AM	#5
r4dr First Lieutenant 172 Rep 392 Posts Drives: various BMWs Join Date: Oct 2015 Location: Seattle, WA iTrader: (0)	Doing some quick searching, the Maxxis RC-1 looks like a road course slick. I don't think either of those tires are good choices for autox.
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03-21-2017, 12:17 PM	#6
TomD335xicoupe First Lieutenant 319 Rep 378 Posts Drives: 08 335XI me ,19 x3 M40 wife Join Date: Jul 2014 Location: North Jersey iTrader: (1)	Hoosier A7 for griiiiiiiiipy AX if you just want to kick your friends collective asses but check with your rules about that type tire SCCA AX rules are strict about tred ware numbers __________________
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