Are Torsion Bars Legal? Kart Technical Regulation Deep Dive! 

if its not part of the chassis (I would argue it is on the account of chassis like the Extreme) then it's 'chassis frame control', and thus still technically prohibited in my view

@@AlanDoveKarting its no longer part of the main chassis once its cut out though :) They need a better definition of what consitutues a chassis (if they dont already). the steering is part of the "control" and that pivots, are they suggesting the steering shouldnt pivot :D . Very shitty wording of the rules!

@@100ccKartingVideos "No longer part of the main chassis" would infer there's secondary chassis components. On the tony extreme we would agree that the central tube is part of the chassis would we not? If we slice it out we have split the chassis into two and thus do not adhere to the chassis being one-piece. If its the case it's not part of the chassis I could cut and clamp most of the chassis back together. If it's argued successfully it isn't 'part of the chassis' (which I hope I've explained why that'd be tremendously difficult) then you have to prove the torsion bar's purpose is NOT chassis frame control... which is absolutely is.

@@AlanDoveKarting but the extra bar isn't control by pivot or damper.

@@100ccKartingVideos it says 'which includes pivots, damper or similar devices'. It doesn't state those are the only chassis control not prohibited, they are examples OF chassis control thats prohibited. The 'similar devises' pretty much nails it down too. The rules state no chassis control first and foremost. It's black and white - no chassis frame control. Otherwise it would stated "no chassis frame control, except stiffness bars that can be clmaped in". If the rules don't say you CAN do it... then you CAN'T do it. It says that too it's still needs to be welded in either way.

FIA regulations are irrelevant. Motorsport UK regulations are a separate entity.

@@AlanDoveKarting the question is, are you allowed to race in the UK with torsion bar? If they don’t ban you means is legal, otherwise they will never allow you to race .

@@vigiror1 Scrutineers generally concern the themselves with safety aspects of the kart not with the minutiae of various technical regulations like this. So yes, a whole grid could be running karts that would be deemed illegal under protest. This hasn't been bought up before so no one has noticed. Protest is how laws are often enforced.

axles aren't chassis and have a specific set of regulations

no, their primary purpose is mandated for. With regard to CIK they have this reg "2.3.1 c) chassis auxiliary parts: in order to make the kart more solid, special tubes and profiles (auxiliary parts) may be mounted (I'd add by clamp). However, they must not present a risk for the safety of the Driver and of the other Competitors."

good question. I don't know

@@AlanDoveKarting I think this prevents Aluminum and Titanium chassis.

To prevent exotic materials being used.

@@EvanNadeau and no carbon... - its to keep the expenses down

Seat is allowed because the regs mandate for it. You fit a seat TO a chassis. They do not mandate for torsion bars.