In every Member State , two- or three-wheel motor vehicles must , as regards speedometers , display certain technical characteristics laid down as compulsory requirements that vary from Member State to Member State; such variation constitutes an obstacle to intra-Community trade .
The above sentence is very complicated. Please provide me a simplified synonymous version consisting of multiple sentences:
Two-wheel and three-wheel motor vehicles in the individual Member States must have certain technical characteristics with regard to the speedometer which are laid down in binding requirements that differ from Member State to Member State . These differences hinder intra-Community trade .