NANKANG CR-1 (CR-S) Tires - 255/40/17 Vs. 245/40/17 Comparison

[@MattGreenland]

This awesome. I really wanted to know the weight of the 245/40/17. Information on these tires is very limited atm.

[@keithenglish4519]

Thanks for the shout out!

[@SamHou32]

Great info! I’m about to order the replacement for my supra which come with stock 255/40/18 tyres and CRS does not have this size. Now I know that 245 would fit perfectly.

[@jacksonjacksonnguyen]

I appreciate the content and the knowledge! I now know how to find out a bulge of a tire thanks to your info!

[@user1138]

Thanks for posting this! I'm seriously considering the 245/40/17 for autocross this season. Still trying to verify SCCA legality at the moment.

[@NAUS2K]

They are legal, available in 4 different wheel sizes already from Phil’s tire service and more than 6 sizes

[@artbustillos1425]

Just bought some nitto 255/45r19 for my Camry good choice ?

[@nicolasjones2929]

Couldn't find a follow up vid have you had a chance to try the cr1's yet?

[@NAUS2K]

Yes sorry im super behind on video uploads this year (as always). Ive done 5 track events and 4 autocross events on CR1s this year. Every single track resulted in PB's and I finished 1st overall at 3 of the 4 autocross events (only one running these tires there)

[@nicolasjones2929]

@@NAUS2K Amazing! thanks for the feedback I'll pick up a set now based on this and your vid was very informative. Your car is so clean btw I'm jealous

[@Maloo_meltem]

Your preference do you think the cr-s will hook well from a stand stall compared to your other tyres

[@NAUS2K]

What do you mean from a standstill , like launching in a straight line on cold tires? Drag racing? Or first out lap?

[@WastedOffKush]

I have a 235/35r19 square set up. The tires are like rubber bands tbh I'm debating getting 255/35r19 I've been having flat tires almost every month it's getting to be a pain. Should I upgrade to a Federal 255/35r19?

[@cw205mi16]

AR1 tend to measure exact size for tread width, so a 255 will be 255 across the whole tyre, where many semi slicks tend to be oversized. Looks like Nankang have done this wider appearance with the cr1

[@NAUS2K]

Yes the AR1 does look like a true 255 just like the RE71R

[@michaelnyden8056]

So if you had to do it over again would you just get the 255 on the 9” wheel after all?

[@NAUS2K]

Nope, 245 has been fast. Don’t regret it one bit , been through two sets of these now

[@1989rrichard]

@@NAUS2K where are y even getting these? I can’t find them on eBay etc

[@cognac8297]

Is 225/45/17 a taller sitting tire that the 245/45/17

[@NAUS2K]

No. with both having a 45 series sidewall, the 245 will be taller

[@pete9110]

Interesting... do you think a 245 ao52 is wider than the 255 Bridgestone?

[@NAUS2K]

From what I have read, the 255 and 245 A052 is about the same as these CR1s , however the A052 is significantly lighter which is a huge advantage. They 245 is listed as 22 lbs. that’s 3 lbs per tire less if that’s true, I’d love to get my hands on a set to compare

[@user1138]

@@NAUS2K Looks like the A052 is going to be backordered for a while.

[@jonj4357]

Wonder how these compare to falken RT660s

[@philstireservice5476]

the CR-1's are as fast as the AO52's with better life....

[@kev_g37x]

Which one is better for a g37 making 350whp I’m currently on 245s

[@mohammedalotayan157]

Thank you for the comparison but to be honest when the car tires are used 10,000 miles and more when you compare them to another new tire that’s a little bit wider. It’s not a match do the same miles on the new tires in then you’ll find that the 255 is wider

[@blknblubkrdude]

I just picked up an S2000 and came here looking for any info on the CR-1, very happy with your video! Did you say you're running 255's on stock fenders? My car is rough and I will not hesitate to modify fenders, but from the limited research Ive done it seems everyone modifies their fenders and runs a bunch of camber to clear 255.

[@Zilla9k]

Your going to need a roll and pull. Running them 255 squared.

[@NAUS2K]

My car has zero fender modifications. 100% oem. I’ve been running 255 re71rs on my car for 3 years without issue. I am now running these 245 CR1s and also have no issues. I bet the 255 CR1s would have fit as well with possible Minor running of the fender liner , but the 245s have been super fast for me this year so I do not regret the decision

[@blknblubkrdude]

@@NAUS2K Is that a result of camber I presume?

[@NAUS2K]

I am running -2.5 deg in the rear and -3.7 up front with spoon offset lower balljoints. Yes the camber up front definitely helps clear the oem fender liner

[@steeven001]

How is the on track tire life on these?

[@NAUS2K]

I’ll find out this year!

[@yourvault1612]

why not get lowerprofile tires?

[@NAUS2K]

35 series sidewall in these widths is very uncommon for 17” wheels

[@1989rrichard]

Can’t even find these anywhere now lol

[@NAUS2K]

They are now a revised compound and renamed as the CRS

[@randomtoyotadude8952]

245 is flush on 9.0 inch 255 is flush on 9.5..almost perfect for 10inch 10inch is 254mm

[@flaviomartinho1753]

Next time measure the bottom and not the wood top.