18-05-2011, 11:34 AM
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Following consultation with competitors, agreement has been reached with the ACU to allow a change in the published Classic Superbike / Junior Post Classic 2011 regulations.
The change means that engine rebores for engines with more than two valves per cylinder are now acceptable up to a maximum increase of +1.00mm above the original bore size.
The actual capacity of the engine must not exceed the capacity class limit.
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