This is from the TAGUSA 2010 website
BRAKES – Cadet, Junior, Senior and Master class Rear system ONLY.
Front wheel systems are permitted in Four stroke, Shifter and Road Racing
Division ONLY. A dual rear system is allowed. The Thor XT series rear axle brake
systems are allowed.
TAG MASTERS ‐ ages 35 and up TAG Master’s drivers must be 35 years of age
before they may compete. A 200 lbs driver may run TAG Masters if he or she is
16 years of age and he or she weighs 200 lbs (minimum) post race on that race
day.
This is solely at the discretion of the club, series and or race director .