The following regulations provide a structure to enable the British Historic Kart Club to promote and organise historic kart events. They aim to ensure the health and safety of drivers and anyone involved with its events. Many BHKC events are organised by clubs that are members of either the CIK or the MSA, and these regulations also incorporate the agreed guidelines and regulations of these two organisations.

In these regulations, the BHKC refers to the British Historic Kart Club.



Events will fall into two types. Static display and on track demonstrations

Static Display

Any event at which the BHKC is invited to display karts without driving. Typically, such an event would be one of the kart or motor shows that we attend.

It is important that all members behave in a fitting manner at all times. You will be dealing with members of the public and it is essential that we present the best image we can at every opportunity. All karts should be displayed in the best possible condition, clean, tidy and as near original as possible. All karts should be displayed with a Data Sheet giving as much information about the kart as possible in a clear and precise way.  Most demonstrations will also include a static display and the above will all apply.


Any events where on track demonstrations take place. Such events are The Donington Historic Festival and the Shenington Revival Meeting. Such demonstration events are covered by the following regulations.

The course is to be marshalled as for competition and with normal event medical requirements in place.

The duration of a session should not exceed 15 minutes.

The number of karts on the circuit should not exceed the maximum permitted by the track licence.



Entries will be required for all meetings.  These may take the form of registration for minor events but for larger events a full entry form will be required complete with the required entry fee at least 7 days prior to the event.



All Drivers must be thoroughly acquainted with these regulations.

Participation in a historic Karting Event is completely at one’s own risk. The BHKC, CIK-FIA, the MSA, Organisers or any Officials can in no way be held responsible for any damage and/or injury occurring while participating in a historic Karting Event.

No karts may participate in an Event unless they have been checked by the Scrutineers. Submitting a kart to Scrutineering shall be considered as an implicit statement of conformity. A Driver shall not be allowed to change his/her kart or equipment after they have been identified at Scrutineering. The Driver must ensure that his/her kart and equipment comply with the conditions of conformity and safety throughout the Event.



The Driver must reach the following birthday during the calendar year:

  • – 13 years old for a category with a cylinder capacity up to 100cc. Drivers under 15 to use a maximum of 19mm restrictor or maximum 19mm venturi carburettor
  • – 16 years old for a category with a cylinder capacity up to 210cc
  • – 18 years old for any category with a cylinder capacity over 210cc.

Drivers must be MSA Kart Competition holders or individuals known to be experienced kart race or historic drivers.  Drivers must be signed on for the event.




At all times drivers must be aware of the potential risks and whilst driving at full speed is permitted, care must be taken to avoid any incident with other drivers and to stay on the track.  Drivers must be especially mindful of the difference in speed of karts from the various eras.

All drivers must act in a responsible manner at all times. Gentlemanly conduct must be the rule of the day. Kart licences are not required but drivers must satisfy the BHKC that they are competent.

Karting is described as a non-contact sport but with the speeds involved and the closeness of driving it is inevitable that incidents occur. Because of our motto, ‘Preserving kart heritage’ it is essential that we are extra careful in avoiding incidents and we do not have the excuse of ‘race incidents’ as we are demonstrating, not racing.

When permitted, due to small attendances Classes may be mixed. On such occasions gear box and non-gearbox karts will use a common circuit. Gearbox drivers must give way to non-gear box in all corners and allow them room to take their own line. This is a simple way to ensure incident free demonstrations.

A similar situation will also apply when karts of different era’s and power are on the track at the same time.  Respect the other driver and back off rather than knock off. Dangerous or unsporting driving is strictly prohibited and may result in exclusion from the Event.

The Driver is deemed to know all flag signals and follow the instructions of the Officials. Systematic or repeated offences may result in exclusion from the Event.

Once the green flag has been waived, pushing a kart to start must be done by the ‘Safety Line’. Drivers must take special care on the following laps for karts still in process of starting and ensure yellow flags are obeyed.  Pushers are not allowed on the track once the kart has started.

It is strictly forbidden to drive a kart in a direction opposite that of the track direction, unless this is strictly necessary to remove the kart from a dangerous situation. Drivers who do not respect this prescription will be excluded from the Event.

Should a Driver be compelled to stop his/her kart, it shall be moved off the track as rapidly as possible. The Driver must stay close to the kart in the nearest marshal post until the chequered flag is displayed.

Any Driver intending to leave the track or to enter the pits shall demonstrate his intention in due time and make sure that it is safe to do so.



Static Display

Members are encouraged to wear period costume at such events. Club shirts or similar also enhance the presentation of any display.



MSA approved crash helmets for kart racing must be to one of the following standards:

FIA 8860-2004 (Not valid after 31.12.20)
FIA 8860-2010
FIA 8859-2015
SNELL SA2010 (Not valid after 31.12.23)
SNELL SA2015 (Not valid after 31.12.26)
SNELL SAH2010 (Not valid after 31.12.23)
(b) In addition the following are acceptable for:
Motorsport UK National Kart Racing Events:
SNELL K2010 (Not valid after 31.12.23)


For Short Circuits, suits bearing the CIK homologation label or leather suits are required. For Long Circuits all drivers must wear leather suits.    Leather suits must have a minimum thickness of 1.2mm measured at any part of the suit.


A pair of undamaged race gloves covering the hands and wrists completely.


A pair of undamaged race boots covering the feet and ankles completely.



Flag signals must be obeyed at all times. Failure to do so will lead to disciplinary action.

All flag signals will be in accordance with current MSA regulation J16 with exception of start and finish flags.

National flag – Stationary Indicates the demonstration has started.
Black and white chequered Indicates the demonstration has ended.
Yellow flag – Stationary Danger, slow down sufficiently to ensure that full control of the vehicle can be retained.  No overtaking.
Yellow flag – Waved Great Danger, slow down considerably.  Be prepared to suddenly change from the projected racing line or take other evasive action including stopping if necessary. No overtaking.
Green flag All clear at the end of a danger area controlled by yellow flags. Also used to signal the start of a formation lap and shown at all posts during first lap of each practice and during formation lap.
Red flag Immediately cease driving at racing speed and proceed slowly, without overtaking and with maximum caution to pits or start line obeying marshal’s instructions, and be prepared to stop should the track be blocked.
Black flag with orange disk Displayed with drivers number Notification of apparent mechanical failure or a fire which might not be obvious to the driver.  The kart concerned must return to the pits for repairs on the next lap.
Black flag Displayed with drivers number: The driver must return to the pits within one lap of receiving the signal and report to the clerk of the course.




All karts must comply with the regulations in force at the time of manufacture of the kart. The BHKC has decided to introduce some specific regulations in the interest of safety.

Chain Guard

All karts must be fitted with adequate chain guards that effectively protect the exposed chain and sprockets; it must extend to at least the lower plane of the rear axle. In addition adequate finger protection on direct drive front sprockets must be provided.


All karts using glass fibre seats must have a minimum 2” diameter washer fitted between the seat and any rear seat supports.


An effective rear brake working on both rear wheels is mandatory (except for karts of the veteran category, which were originally fitted with a brake acting on only one wheel). For the geared class karts the brakes must work on all four wheels (except for those Veteran gearbox karts which were originally only fitted with rear brakes). A brake cable must have a minimum diameter of 1.8 mm and be secured with a cable clip of the flat clip type.

Number Plates

All karts at all events must carry number plates representative of their age and class.  A front number plate is to be fitted as a minimum requirement.  A record of preferred numbers is being assembled by the club in order to prevent duplications but the same number on different colour plates will be allowed.


In order to reduce the noise, the exhaust silencer must at all times comply with the limit in force at the Event. When exceeding the noise limit an extra silencer is compulsory. Any infringement shall be notified and may result in exclusion from the Event.

To ensure our access to all race circuits it is important that we keep our noise levels to current MSA levels.  The BHKC is well aware that this will be difficult for some engines and the following guidance may help.

For demonstrations, supplementary silencing of a temporary but secure nature may be fitted in order to reduce noise levels to an acceptable level.

For many direct drive karts the addition of a ‘TKM’ or ‘Decibel’ end can to the current silencer plus some form of inlet airbox or filter may well suffice.   For less adaptable engines like those with integral silencers, a complete bolt on alternative may be necessary.

Gearbox karts have a similar option, the use of a modern silencer or similar device, coupled with an inlet box or filter similar to what 210s use would work well.  When selecting a silencer, be aware that the number of right angle bends is specified in current regulations for a reason; they are quite effective in silencing.

Telemetry, Data logging and Cameras

Telemetry and data logging are prohibited. Only instruments fitted to the kart as in the relevant periods are allowed if they comply with the category concerned and have been approved by a Scrutineer. Cameras are permitted at the sole discretion of the organisers and must comply with MSA regulations



This is largely based on tyre width and chassis design changes as they occured. Watercooled engines are excluded except for the Vega VIC 19L, the John Dent Villiers conversion and the Paul Biagi Bultaco conversion. Periods refer to the first production date of the kart rather than the actual date of manufacture. The chassis-engine-tyre combination must comply with the category shown below. Where the chassis, engine or tyres are from a later period the kart will be considered to be in that catagory.

Veteran Up to end of 1963 Veteran karts will run tyres not exceeding 4” wide across the shoulder section of the tyre.
Vintage 1964 to end of 1971 Vintage karts will run tyres not exceeding 4” wide across the shoulder section of the tyre.
Historic 1972 to end of 1977 Historic karts will run tyres not exceeding 6” wide across the shoulder section of the tyre.  Class I karts may only use rear axles up to 1 inch diameter and the overall width of the kart must not exceed 1100mm.
Classic 1978 to end of 1984 Class I karts may use rear axles up to 30mm in diameter and the overall width of the kart must not exceed 1300mm. Classic karts may run tyres not exceeding 7.1” across the shoulder section of the tyre.




Veteran – Engines homologated before the end of 1963

Clinton A400,A490,E65, JAP J80, West Bend 58007,V580,610, Aspera AH47, AH51,AH58, Power Products AH61 1299,AH61 1342,AH51,AH58 Super,AH61 1340, Harper Vincent 1962, Villiers 6F,9F,10F,1F, Ydral Y60, Erikaze GC50, Homelite K92,K95,K100, JLO L101,LH101,LK101, McCulloch Mc2,Mc5,Mc6,Mc7, Mc10, Mc20,Mc30, Montesa 1962, Parilla V11, Saetta V11,V12, Stihl SK120, Guazzoni 10HP,12HP, Bultaco K100, DEM 1962, Komet K12,K12S,K12C, Konig MM.


Vintage – Engines homologated before the end of 1971

All engines eligible for the Veteran Class plus the following: BM F100, F100JB, F100C, Guazzoni VR2, VR2A, VR3, VR4, SVR2, SVR2A, SVR3, SVR4, VR1, VR7, VR8, VR10, JLO L99, Komet K22, K33, K44, K55, K96, K77, K88, McCulloch MC7/8, Mc8, Mc9, Mc40, Mc45, Mc45D, Mc91, Mills HK99, Montesa M100, M100S, Parilla S13, S13AC, BA13, TG14(L), GP15(L), MK16, HF17, Petry SFK100, SFK100R, Saetta V16, V17, V18, Starr SS100, Stihl SK140, SK150, Vega VIC19, VIC19L


Historic – Engines homologated before the end of 1977

All engines eligible for the Vintage Class plus the following: Arisco C75, BM FC/52, FCL, K96/3, DAP Corsair T70, T81, T71, Delta VRS74, Fieldhouse Manx 100, Hewland/Arrow KE3, KE4, Guazzoni CT11A, Komet K75, K78, K78TT, K88TT, K89, Parilla SS20, TT22, IMI Milano 100FVT, McCulloch Mc91B, Mc92, Petry P100L, SFK100RR, Sirio SC504, ST/50, ST/52, ST/L, Zip Zed1


Classic – Engines homologated before the end of 1984

All engines eligible for the Historic Class plus the following: Arrow KE5, Audax A2, BM 97TT, 98TT, Atlas 15, 28, Carrell 78A, 80S, DAP T72, T82, T91, T92, T75, Dino 100, 100R, 100TT, 1003K, Fieldhouse Manx 100L, Hetschel KZH RL, Komet K55TT, K80TT, Jrabor PAJ19A, Minarelli K100V, Mugen MK100A11, Parilla TT23, TT26, TT27, 5T28, TT31, PCR TS50/3, TS54/3, TS50,3 Reed, KS2000, TS54/3 Reed, Petry FL100, FK100, P101K, P101L, P101M, Refo A3, A6, B3, B5, RKD RD82, IT82-3, IT82-5, Rotax R100, SA Racing CB82, Sirio 51TT, TT45, TKM FF99, FF99TT, L90TT, S89, S89-3, S89TT, RL66-TT, RS89-TT, VMK100, Yamaha KT100A, KT100S, KT100AII, KT100AX, KT100AX-3, Zip 48



Veteran – Engines homologated before the end of 1963

Class IV Special: Maico 196, Montesa 125, Puch SVS/K, Sachs 200, Villiers 6E, 8E, 9E, Zundapp 1962, DKW 1962

Class IV Super: Bultaco 175, K200


Vintage – Engines homologated before the end of 1971

All engines eligible for the Veteran Class plus the following:

Class 200 Villiers: Villiers 6E, 8E & 9E. Stroke 72mm.  Maximum one carburettor.  The barrel, head, crankcase and gearbox must be of the original Villiers type and have the external appearance as homologated.

Class 250 International: Ariel 200, Bridgestone 175 twin, Bultaco K125, K200, K200/5, K250/5, DKW 1962, Flowrite Montesa ICRV, Maico 175 and 196, Merlin MRV1, MRV1S/S, Montesa 125, Impala, Impala Cross, Cappra 250/4, King 250/5 Ossa K196, 250, 250 K5, Puch SVS/K, Saetta V200, Suzuki T200K, Villiers 31C, 2L, 3L, Starmaker, Starmaker-Kent, Zundapp 1962




Historic – Engines homologated before the end of 1977

All engines eligible for the Vintage Class plus the following:

Class 125:  Single cylinder air cooled engines produced before the end of 1977.  Maximum 125cc.

Class 210 National:  This class is basically for the Villiers 9E engine and associated models, together with modern replicas of that engine. The engine to consist of a single cylinder air-cooled two-stroke with gearbox mounted in unit and with no more than four operative gears. The engine shall be piston timed with a single carburetor facing rearwards. The ignition system shall be free. The stroke shall be 72mm and the maximum bore 60.9mm. The engine shall be equipped with a single sparking plug. The maximum diameter of the cylinder barrel fins shall not exceed 160mm and the barrel shall have 14 fins. The overall height of the cylinder barrel between flange faces shall be between 130mm and 133mm. The maximum diameter of the cylinder head shall not exceed 160mm and the height of the cylinder head shall not exceed 76mm. The head shall have 19 vertical fins. The gearbox casing shall be of identical appearance to the original Villiers 9E 10E and 11E pattern. The exhaust outlet will be in the same position to that of an original Villiers barrel and will take an exhaust pipe not larger than 13/4in O.D. The engine mounting points to be as the original pattern and the contours of the crankcase to conform to the original Villiers outline. The silencing system shall comply with the R.A.C. Regulations.  Reed valve induction is permitted providing that the original position of the induction pipe is retained and that the valve is only fitted in the induction tract.

Class 250:  Series production air cooled engines produced before the end of 1977.  Maximum 250cc, 6 gears and two cylinders.

Classic – Engines homologated before the end of 1984

All engines eligible for the Historic Class plus the following:

Class 125:  Single cylinder air cooled engines produced before the end of 1984.  Maximum 125cc.

Class 250:  Series production air cooled engines produced before the end of 1984.  Maximum 250cc, 6 gears and two cylinders.