Kart Republic Front Bar

[Aaron_Hachmeister_13 (Aaron Hachmeister)]

I think knowing the rest of your setup would be helpful, along with the engine/tire you’re running.

Generally Kart Republic doesn’t run with a front bar, although I have used it in situations before, notably a very low-grip surface that historically everyone struggled for setup with.

I’m trying to understand what you mean by hopping when hitting a curb. I remember the KR2 being very stable over curbing and haven’t heard of that issue before. Do you know what the wall thickness of your frame is? I know KR has been experimenting with a few different types of wall thicknesses over the past couple years

[tjkoyen]

The frame design of the F03 is the same as a KR2, though with BestKart’s (AMV) material and components.

We’ve had KR drivers test the BestKart say it feels pretty similar, though the feedback has generally been that the BestKart is a bit more rear-biased. They tune very similarly.

[Aaron_Hachmeister_13 (Aaron Hachmeister)]

How is the tuning on the BestKarts? With Olds a couple years ago we were way out from neutral to get the kart fast, but it seems like they’ve made improvements the last couple years with getting the karts to stay closer to the standard tuning setup

[tjkoyen]

Nothing too crazy. My baseline right now is low front ride, high rear, and half caster. Everything else is neutral.

[Paul_Montopoli]

I heard KR1. All 32mm with 1.6mm wall thickness.

[Bai7200 (Bjørn ingebrigtsen)]

Back In the day the AMV/Bestkart was made by Parolin and the design do not look like it has changed since then.
The AMV kart was easy to drive and setup as i remember it.

[NikG (Nik Goodfellow)]

FIA regulations have a minimum wall thickness of 2mm. USA regulations vary depending on the promoter. I have seen regs with as low as 0.060" (1.5mm) for 1.25" (31.75mm) frames and no mention at all. For example NKA doesn’t specify a minimum wall thickness (in the regs I have from 2022) but they do state:

“20.2.1: Homologation
Chassis used in series competition are not required to be homologated but are expected to generally meet homologation standards set by the CIK”

So are KR making a US specific frame now? I’m sure its worth it.

It was rumored in Europe that Parolin where using 1.8mm or 1.6mm for the cadet frames at one point.

[DIG78x (David Goldman)]

I’m not surprised. Like I said, for whatever reason NCMP is a unique track in terms of what works well out there.

[Chuck_Goodson]

@Max_Martinis

Please note the following information: The KR/FA karts typically do not use a front bar like other karts, such as Birel, OTK, etc. However, kart setup can sometimes be quite complex if changes are not tracked or you are not close to the standard setting. If the setup is wrong somewhere else, adding the bar can compensate for the error and feel like the kart’s balance has improved, but that doesn’t necessarily mean that it’s the correct way to have a competitive chassis. It also depends on other factors, such as whether the chassis is bent or swaying, etc. (I don’t think this is the case since it is a 2024 chassis), but you never know if it has been used before or crashed before it was bought… many factors.

It’s also true that using factory parts is the best bet, whenever possible since karts are designed to use their OEM parts, especially parts that affect the flexibility of the kart, like axles, torsion bars, spindles, etc.

Have a great weekend!

I would heed this input. It is from one of the principals working with DPK Americas FA kart endeavor at the national level.