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Kart Classes |
There are over 20 kart classes in the UK, with all of those listed below recognised by the MSA. Meetings are held for almost all classes on a regular basis by local
kart clubs although not all clubs offer racing for all classes, so always check first.
| Comer Cadet | Age: 8 - 12 years |
| Weight: 97kg (S60 = 95kg) (Min. Kart & Driver) | |
| Engine: 60cc Comer engine with Clutch. Recoil starter. | |
| WTP Cadet | Age: 8 - 12 years |
| Weight: 100kg for 2005 regs (Min. Kart & Driver). The new B5 TAG engine, when approved, will raise the weight to 103kg, and the existing B1 engine will fall to 93kg minimum weight. | |
| Engine: 60cc WTP sealed engine, clutch. | |
| Junior TKM - 2S | Age: 11 - 16 years |
| Weight: 129kg (Min. Kart & Driver) | |
| Engine: TKM BT82 100cc restricted Piston-Port engine, optional clutch. | |
| Jnr TKM Inter - 2S | Age: 11 - 16 years |
| Weight: 144kg (Min. Kart & Driver). Minimum driver weight 62kg. | |
| Engine: TKM BT82 100cc restricted Piston-Port engine, optional clutch. | |
| Junior Blue | Age: 11 - 16 years |
| Weight: 125kg to 155kg (Min. Kart & Driver). See regulations. | |
| Engine: IAME Linx 100cc, clutch, driver/weight restrictors. | |
| Junior UK Clubman | Age: 11 - 16 years |
| Weights: 125k - 140kg (Engine dependant) Min driver weight from 60kg. | |
| Engine: Parilla Leopard 125cc or piston-port engines (restricted) | |
| Jnr Rotax MiniMax | Age: 11 - 16 years |
| Weight: 135kg (Min. Kart & Driver) | |
| Engine: Rotax FR125 Junior Max (restricted) | |
| Junior Rotax | Age: 13 - 16 years |
| Weights: 145kg (Min. Kart & Driver) | |
| Engine: Rotax FR125 Junior Max | |
| JICA (Junior Intercontinental A) |
Age: 13 - 16 years |
| Weight: 135kg (Min. Kart & Driver) | |
| Engine: CIK 100cc piston-port engine with clutch. | |
| Honda Cadet | Age: 8 - 12 years |
| Weight: 100kg (Min. Kart & Driver) | |
| Engine: Honda Gx160 160cc four-stroke engine with clutch. | |
| Junior TKM - 4S | Age: 11 - 16 years |
| Weight: 140kg (Min. Kart & Driver) | |
| Engine: TKM 200cc 4-stroke junior version, clutch, restrictor. | |
| Honda Junior | Age: 11 - 16 years |
| Weight: 145kg & 152kg (Min. Kart & Driver) | |
| Engine: 2 x Honda Gx120cc (145kg) or 2 x Gx160cc (152kg), clutch. | |
| Honda Junior Heavy | Age: 11 - 16 years |
| Weight: 160kg. Minimum driver weight 62kg. | |
| Engine: 1 x Honda Gx120 & 1 x Honda Gx160 4-stroke clutched engine. | |
| Junior Gearbox | Age: 13 - 16 years |
| Weight: 155kg. (Min. Kart & Driver) | |
| Engine: TM85 MC and Honda CR80 engines, 6 speed. |
| Formula 100 National | Age: 16 years + |
| Weight: 155kg (Min. Kart & Driver) | |
| Engine: Generally 2003 & earlier rotary-valve engines, 24mm carb. | |
| Formula TKM - 2S | Age: 16 years + |
| Weight: 148kg & 163kg (heavy) (Min. Kart & Driver) | |
| Engine: TKM BT82 115cc piston-port engine with optional clutch. | |
| Rotax Max 125 | Age: 16 years + |
| Weight: 162kg (Min. Kart & Driver) | |
| Engine: Rotax FR125 Max sealed two-stroke engine with clutch. | |
| Formula Blue | Age: 16 years + |
| Weight: 125kg to 155kg (Kart & Driver) See regulations | |
| Engine: NKRA listed engines | |
| Formula Libre | Age: 16 years + |
| Weight: 155kg (Kart & Driver) | |
| Engine: 100cc direct drive. (Open grid for club racing) | |
| ICA (Intercontinental A) |
Age: 16 years + |
| Weight: 150kg (Min. Kart & Driver) | |
| Engine: Reed valve 2-stroke engines (maximum 100cc), 24mm carb. | |
| Formula A | Age: 16 years + |
| Weight: 150kg (Min. Kart & Driver) | |
| Engine: Rotary or reed valve engines. Latest models. | |
| Formula TKM - 4S | Age: 16 years + |
| Weight: 162kg & 175kg (heavy) (Min. Kart & Driver) | |
| Engine: TKM 200cc 4-stroke, clutch | |
| Honda Senior | Age: 16 years + |
| Weight: 175kg (Min. Kart & Driver) | |
| Engine: 2 x Honda Gx160 160cc 4-stroke engines with clutch. |
Gearbox Classes
See also 'Cadet & Junior Classes' for junior gearbox. (Novices are not allowed on long circuits)
| 125 ICC (UK) | Age: 16 years + |
| Weight: 180kg (Min. Kart & Driver) | |
| Engine: 125cc reed valve engines with 30mm carburettor. | |
| 125 Open | Age: 16 years + |
| Weight: 185kg Short circuit (Min. Kart & Driver) | |
| Engine: 125cc reed or rotary valve engines. | |
| 210 | Age: 16 years + |
| Weight: 185kg Short circuit & 190kg Long circuit (Min. Kart & Driver) | |
| Engine: Villiers 9E (or replicas) air-cooled 2-stroke engines. | |
| 250 National | Age: 16 years + (17 years + for long circuit) |
| Weight: 195kg Short circuit & 200kg Long circuit (Min. Kart & Driver) | |
| Engine: 250cc single-cylinder engines with 5 speed gearbox. | |
| Formula 250E | Age: 16 years + (17 years + for long circuit) |
| Weight: 210kg (Min. Kart & Driver with Bodywork) | |
| Engine: 250cc twin-cylinder + Rotax 257 + 125cc twin engines. |
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