I haven’t seen any 4-stroke chassis used in KA. It’s all been standard TaG/X30 CIK karts. Most sprint guys run CIK stuff in Yamaha and that’s closer to 206 in speed than KA is. KA isn’t much slower than TaG.
No question, I would go with a standard 2-stroke CIK spec kart.
The concept behind four-stroke specific chassis is more down to budget and a couple of ergonomic tweaks rather than chassis construction/handling differences to accomodate your typical inboard drive OHV engine.
For example, they may come with a simpler camber/caster adjustment system, come conventional wheels and bearing carrier materials, different rear cross bar position, different seat bracket, inboard drive key on the axle.
With the KA100 potentially being a two stroke budget option, those same chassis models for “four stroke” are sometimes offered as a KA100 chassis.
So, I wouldn’t rule one in, or out based on them being used (Marketed) as a four stroke chassis.
More info on four stroke chassis (still sounds like an oxymoron to me ) here:
That’s going to change depending on which chassis brand you were thinking of using. Some definitely have been using their model that was deemed appropriate for X30/TAG. Some have been going the route of a chassis with a narrower gauge of tubes, going as far as using their 4 cycle model. So, as with most questions regarding karting, the answer is “it depends.” Even if you’re going the route of a used frame, it’s worth the time of talking to the local dealer of the chassis brand that you’re considering, and let them point you in the right direction.
I guess my question sort of revolved around whether or not the (typically) softer 4-stroke chassis were appropriate for KA100… or if a normal X30 chassis was the ticket. Ive seen photos online of people racing KA on the Compkart 4R and the Birel/Ricciardo AM-29.
@KartingIsLife , thanks for the link… that thread addresses a lot of my questions.
Both the 4R and the AM 29 aren’t used in just 4 stroke racing. A soft chassis is tunable, as is a stiffer chassis. The ultimate answer you’ll get is “either is ok,” if you’re willing to put in the time to set it up properly.