2011 SEMRA Thumpstar Spec Class

 

Motul 5100 10w40 will be the Spec Oil and will be checked by random lottery.  Bike must run Motul decals to be awarded points. 

 

Oxygenated fuels are illegal and will be checked by random lottery. This does not mean race fuels are illegal, just oxygenated race fuels. Anyone caught with illegal oil or fuel will lose all points for that event and will be suspended from participation in the next event.

 

There will be two spec classes for 2011. Heavyweight will be for riders who weigh more than 195 pounds with gear. Lightweight will be for riders weighing 194 pounds or less with gear. Both classes will be on the track concurrently.

 

                               I.            Must run a Thumpstar TDX Super Motorcycle

                             II.            Motorcycle must pass SEMRA tech

                           III.            Motorcycle must be stock in appearance and must retain Thumpstar/SEMRA decals. Color changes of bodywork allowed.  Additional stickers allowed, but must not cover stock stickers.

                           IV.            Must use stock motor. NO MOTOR MODIFICATION ALLOWED. Motors will have a seal and must be unbroken at tech to enter class.

                             V.            Electric starter may be removed from 2007 and 2010 bikes Bike must run stock ignition. No aftermarket “Black boxes”

                           VI.            Must use stock carb. and intake. No modifications allowed. Jetting changes are allowed.

                         VII.            ‘07 and ‘08 bikes may use ‘09 exhaust

                       VIII.            Gearing changes are allowed.

                           IX.            Must use stock fork and shocks. Springs, valving and oil may be changed.

                             X.            Must use stock brake master cylinders, calipers, and rotors. Brake pads may be changed to aftermarket.

                           XI.            Must use stock supplied 12” wheels.

                         XII.            Tires must be commercially available DOT tires. No slicks or rain tires.

                       XIII.            You may change handlebars, grips, and levers.