▁creating ▁separate ▁races ▁on ▁the ▁same ▁race ▁day ▁at ▁their ▁facility ▁by ▁div iding ▁rac ers ▁into ▁two ▁groups ▁or ▁classes , ▁a ▁box ▁class ▁and ▁no - box ▁class . ▁ ▁" Some " ▁rac ers ▁began ▁conce aling ▁the ▁delay ▁box ▁and ▁entering ▁the ▁no - box ▁class , ▁therefore ▁actually ▁che ating . ▁ ▁Del ay ▁box ▁use ▁was ▁initially ▁thought ▁to ▁be ▁limited ▁to ▁trans bra ke ▁equ ipped ▁cars . ▁Del ay ▁box ▁use ▁by ▁motor cycle ▁drag ▁rac ers ▁lag ged ▁far ▁behind ▁those ▁in ▁use ▁by ▁the ▁car ▁rac ers . ▁These ▁factors ▁contributed ▁to ▁the ▁delay ▁box ▁controvers y ▁because ▁some ▁rac ers ▁felt ▁their ▁chosen ▁equipment ▁was ▁in compatible ▁with ▁the ▁use ▁of ▁delay ▁boxes . ▁ ▁This ▁was ▁un true ▁and ▁educ ating ▁the ▁bra cket ▁racing ▁community ▁took ▁time . ▁ ▁A ▁significant ▁reason ▁motor cycle ▁drag ▁rac ers ▁lag ged ▁in ▁implementing ▁delay ▁box ▁electron ics ▁is ▁due ▁to ▁the ▁wide ▁variety ▁of ▁dri vel ine ▁configurations ▁on ▁drag b ikes . ▁Of ▁the ▁successful ▁bra cket ▁racing ▁drag ▁race ▁cars , ▁most ▁had ▁automatic ▁transm issions ▁equ ipped ▁with ▁trans bra kes . ▁In nov ation ▁quickly ▁adapted ▁the ▁delay ▁box ▁to ▁cars ▁with ▁dual ▁line ▁lo cks ▁( dev ices ▁which ▁locked ▁the ▁bra kes ▁on ▁all ▁four ▁whe els ▁elect r ically ), ▁and ▁manual ▁transm issions ▁with ▁the ▁use ▁of ▁a ▁hyd ra ul ic ▁throw ▁out ▁bearing ▁to ▁hold ▁the ▁cl utch ▁pl ates ▁apart ,