ICA
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Inter Continental A
Inter Continental A (ICA) is the CIK/FIA class for 100cc reed valve non-gearbox, direct drive engines as it was run up until (and including) the 2006 season, after which the arrival of the 125cc KF classes spelled its demise. It differs from FA (Formula A) and FSA (Formula Super A) in the fact that those classes used rotary valve engines instead of reeds.