Age:

5-7

Motor:

Comer C-51 Piston Port; Old-style C-50 Motors are allowed with 20 lb. weight handicap.

Chain/Gearing:

219 chain, 10 tooth driver, 89 tooth rear sprocket.

Weight/Specs:

1. 150 lb. maximum front width.

2. 40 inch minumum, 42 inch maximum rear width .

Fuel:

Special fuel/oil mix.

Tires:

Bridgestone YHC, Burris 55A or B44A - Driver option. Front 4.5-5 rear max. 5.5-5 (20psi after main event).

See I.K.F. 208.3 for more specific class specifications.