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  #41 (permalink)  
Old 04-22-2017, 12:22 AM
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As my 10 year old Kumhos on the rear were past the wear indicators I thought I had better find something legal to get around on. After a lot of research I ended up getting some Federal RS-RR's. They only come in 255 40 17, however they are sized a bit larger. The old 275 40 17s were pretty much exactly 275 width on my 9.5" rims. The 255 40 17's RS-RR's are about 267, so not a lot narrower. They are 15mm smaller diameter but I can live with that.

The tread pattern is awful, something only a ricer would love and they are noisey - someone said they sound a bit like your being followed by a jet, and that is about right. Not a big deal in our cars though and I dont think you would notice in an open car.

But, they are terrific value and the reviews I have read have been very positive on the grip. Treadwear is stated at 140. Initial impression is that it is much harder to break traction than the Kumhos, but, as I said they were very old. If they go OK, Ill get a couple for the front before nats (The 235's size around 245+ apparently). The Kumhos on the front have plenty of tread at the moment. Not sure why the rears have worn more quickly

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Old 04-23-2017, 01:31 AM
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Interestingly (or not) the treadwear on the tyre is printed as 200. The web site states 140 - I got a freshly minted set. I think they just print that on so they can run it in the 200 treadwear class in the US.
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Old 04-23-2017, 04:08 AM
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Interestingly (or not) the treadwear on the tyre is printed as 200. The web site states 140 - I got a freshly minted set. I think they just print that on so they can run it in the 200 treadwear class in the US.
You making excuses already
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Old 04-23-2017, 05:53 AM
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Did the excuses ever stop?
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Old 04-23-2017, 11:34 PM
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Not at all boys, had a Great drive today and I reckon they are definitely stickier than the ku36s.

I'm more concerned about the new Wakefield noise restrictions. A mate was telling me today his brother got measured at 110dB in his street registered wrx. Everyone in his group was over the 95dB limit.
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Old 04-24-2017, 01:48 AM
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As long as your mouth is shut you should be fine Andy.
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Old 10-29-2017, 06:34 PM
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Now the forum is up to speed again thought I would post my impressions on the Federal RS-RR option for Control Tyre class.

In a word they are pretty blooody good. Did a PB by nearly a second and a half. Took me a while to get used to the extra grip over the (very old) KU36's.

Definitely a good option for the 25th anniversary next year which is going to be HUGE
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Old 04-28-2018, 03:02 AM
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Is this class changing for this years nats?
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Old 04-28-2018, 05:16 AM
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Andy had no class last year, one would think it will be the same this year.
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Old 04-28-2018, 05:31 AM
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Similar format I think. Treadwear 180+, a selection on tyres on the ok list, others possible with approval. Kim can clarify.
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Old 04-30-2018, 10:12 PM
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(Time for some trash talk) I think the QLDERS will take out most classes.......based on their recent form at the Sprint Series. I dont even think the rain can save the NSWelshman.
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Old 05-01-2018, 01:24 PM
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Yes, I reckon you'll go well in race class this year Matt!!!
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Old 05-01-2018, 02:15 PM
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Yeah probably not mate ��
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Old 05-01-2018, 11:37 PM
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Yes, I reckon you'll go well in race class this year Matt!!!
I have it on good authority Matty has agreed to return if these are installed in the garages:

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Old 05-01-2018, 11:56 PM
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Matty needs to install one on his car too.
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Old 05-02-2018, 09:45 PM
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It’s not that loud fellas... it was a conspiracy you know!
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