Shenington started the class, and poss a few at Rissington as well now, regs will be 30mm axles, original homologated type chassis and they will be in the 2013 Gold Book, plus fixed sprocket and for Shenington: 5.2. As per MSA Kart Race Yearbook D.3.8.4 for TKM Extreme Clubman except for the following: 5.3. Chassis: Karts must conform to the original TKM homologation which will be checked against the original homologation fiche. 5.4. Only a 10 tooth front sprocket and a 77 rear sprocket is permitted. If found necessary the club reserves the right to amend the rear sprocket size by bulletin prior to any race meeting. 5.5. No new slick tyres are permitted. Only used slick tyres (to TKM Extreme class regulations) may be used which must be between 3.5mm and 1mm on the tread depth holes at the start of the meeting which will be stamped and must be used at subsequent meetings until below the minimum tread depth. The decision of the Chief Scrutineer on tyre eligibility for a meeting is final. Wet tyres are not restricted. 5.6. Ackermann steering is permitted. Stub axles are not restricted to original. Ride height is not restricted. 5.7. Rev-counters are not permitted. 5.8. The winner of a round will be required to add 4kg to the class weight for the following round in which he or she takes part, fixed in accordance with U.29. If not the winner of that subsequent round, the weight penalty may be removed for the next round. 5.9. The championship winner in the class may not race in the class in the following year, unless permitted to remain at the absolute discretion of the SKRC committee.
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