Age groups

Youth A   Under 16 born 2002 or 2003

Youth B   Under 14 born 2004 or 2005

Youth C   Under 12 born 2006 or 2007

Youth D  Under 10 born 2008 or 2009

Youth E   Under 8  born 2010 onwards

JCAYA also use an Under 6 category

Read more about the British Cycling Age Classifications, here