Alpinestars Suit Comparison; KMX 9 vs KMX 5 vs KMX 1

1

I currently have an old Sparco X-light suit that I’m looking to replace. I’m looking at (what appears) previous year models of Alpinestars suits listed on Speedway Motors.

I’ve searched the interwebs for reviews and/or comparisons and I haven’t found clear and practical differences between these suits.

Does anyone have experience with these particular suits KMX9, KMX5, KMX1 that I’m considering? And/or know which suit would be the lightest weight, coolest, and most breathable in the Florida summers?

Alpinestars KMX 9 Karting Suit:

Alpinestars KMX-5 Racing Suit:

Alpinestars Super KMX-1:

I’d appreciate any feedback on these suits.

Thanks,
Chris

2

If anyone else is in the same boat I found this very helpful on https://www.accelerationkarting.com/

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Thanks for the reference from Acceleration. The only input I have is that for 2019/2020 Alpinestars updated the design of the KMX9 and it now has the polyester inner like their other suits to be cooler. I also tried it on at the same time as base model K1 and Sparco suits and the Alpinestars was easily the lightest of the bunch.

4

Kart suits seem to fall into heavy or thin categories. I suspect the more you spend, the more high tech and light breathable fabric is used.

It would be nice if they indicated wether it is a winter or spring type suit.