OK1 Chassis - Rear end and tire wear

Dear sirs,

First of all, sorry for the lack of feedback - We were preparing for the race.

We moved the seat before we had a weight distribution of 35% to the front and 65% to the rear, so we corrected that and the maximum we managed to reach was 41% front - 61% rear. That was what the OK1 chassis allowed us to do.

The rear track was always set to 140mm.

Still, rear tires wear was very very very high when compared to the front tires, what we found out with another driver that was in the team with us and also driving an IPK is that this is normal for this chassis. We compared our tires wear with other chassis and ours was significantly higher.

We also tried the Magnesium rear hubs on both karts, but we couldn’t evaluate the tire wear as using them (90mm) made the kart be very loose in the back, so, here goes a tip for anyone thinking to expend around 200 Euros in those magnesium hubs of IPK, save your money, they don’t worth it.

We had to use medium tires for Saturday and soft tires for Sunday, surprisingly, we were faster with the medium compound than with the soft ones.

Another thing is that we both had the 30mm frame, which was very good for qualy, for example, I was 0.081 from the pole with medium compound (Saturday) and 0.125 off the pole with the soft compound (Sunday). But for the races, we lost a lot of pace, still, we managed to be constant but not as fast as the qualy while the other chassis’ did manage to be fast in the qualy as in the race and keep their pace.

The tire brand was MG White for Saturday and MG Yellow for Sunday - Pressures were almost the same for most of the drivers.

Finally, we both drivers that drove the IPKs in this SKUSA weekend here in Mexico decided to move to CRG and leave IPK.

IPK was great to start and learn a lot about setups as it is very hard to find the right setup for the track, while we heard that CRGs are way easier to set up.

Thank you all for all the support and opinions are welcome.

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