Best 15 in lightweight? Kosei K1 vs TrMotorsports C1

[Jean]

I agree, otherwise you wouldn't see treadwear 30-40 autocross tires lasting a full season and some guys drive on them to and back from the events.

[nando]

I've got about 4 hours of track time (3 events), a couple autox's, and street driving from march through september of last year (~8k). I'm expecting them to last until the end of summer, with a couple track days and hopefully 8 -10autox events. They were lightly used before I got them too.

and unfortunately, treadwear is 100% useless for predicting tread life, except that 800tw grandma tires usually get old and crack before the tread wears out, and sub 200 tw tires usually last a summer or two.

[guibo09]

with a treadwear of 100, i would have expected them to have melted within a summer.

how many street miles + how many events (type?) do you expect from them?

[nando]

why is it so unbelievable?

the RA1s were known for their long life as well, maybe even better.

neither are neccesarily perfect street tires; they're loud, stiff, and they tramline like crazy, but they aren't bubble gum hoosiers either.

[guibo09]

almost unbelievable that you got that much life out the R888's

[nando]

they are probably well heat cycled but I'm not doing trophy races here. The specE30/pro3 guys would probably wear through them faster than you would on the street.

[FredK]

I think nando gave them 40 heat cycles to get the tread life he wanted.

[z31maniac]

i got about 10k out of my ES100s, they sucked in the rain and weren't that great in the dry. they got worse as the tire aged, too.

the R888s have nearly that and still tons of life left. I expect them to last 2 summers (+ a couple HPDEs and autox). The ES100s barely lasted one.

The R888s are really wearing that well on the street?

Almost makes me wish I had purchased those instead of the RT-615s. But then again, they probably aren't $330 a set (after the rebate) in 215/40/17

[nando]

I'm with you there; pretty sure they last a decent amount of time though, I'd be surprised if R888s outlasted them.

Honestly, I don't like spacers (especially huge spacers) but for a 15x9 relatively lightweight wheel that costs $120 apiece and looks like THAT, I'll run big-ass spacers any day.

i got about 10k out of my ES100s, they sucked in the rain and weren't that great in the dry. they got worse as the tire aged, too.

the R888s have nearly that and still tons of life left. I expect them to last 2 summers (+ a couple HPDEs and autox). The ES100s barely lasted one.

[SkinnyVT]

FUUUUUUUUUU....they won't clear the Massive 300mm template radially.

Oh well, I guess I'm going to have to settle with Rota Torques.

You talking about the TRM C1s? Because they do in fact clear the Massive Sport kit will a little clearancing on the ends of the calipers.

[Ryann]

just bought some C1's. light, great fit, good looks, cheap, 15x8. The bad: this is Chinese hardware I bolted to a German car. I try not to think about it, but bothers me.

[Tchao]

Oh well, I guess I'm going to have to settle with Rota Torques.

Copy cat.

[M-technik-3]

Oh street drive.. i would not get r-comps for street driving. I'd get a UHP like G-Force Sport or Yoko AVS ES100 for that.

Want some tires with width as stretched are silly to me. I have ra1 on my M3 on the street, but drive em when no rain is forecasted.

Old tires doesn't matter.

[Wh33lhop]

ES100s vs R888s. LOL

the R888s will both grip better (rain or shine) and last longer. They might be cheaper, but that's about the only advantage I can think of.

when will the back stock of ES100s finally dry up? This tire has licked balls since it came out but people still buy them somehow, and they stopped making them years ago..

I'm with you there; pretty sure they last a decent amount of time though, I'd be surprised if R888s outlasted them.

Honestly, I don't like spacers (especially huge spacers) but for a 15x9 relatively lightweight wheel that costs $120 apiece and looks like THAT, I'll run big-ass spacers any day.

[mazur]

FUUUUUUUUUU....they won't clear the Massive 300mm template radially.


Oh well, I guess I'm going to have to settle with Rota Torques.