Embodiments of the present invention relate to a control system for {TAIL ~ a bicycle} towing a trailer; however {HEAD ~ other similar embodiments} may apply to combustion, electric or hybrid engines powering a vehicle towing a trailer 
Embodiments of the present invention relate to a control system for { TAIL ~ a bicycle } towing a trailer ; however { HEAD ~ other similar embodiments } may apply to combustion , electric or hybrid engines powering a vehicle towing a trailer
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