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16.16.010 In road races, a tricycle with two rear wheels shall be fitted with a safety bar to prevent the front wheel of a following tricycle from entering the space between the rear wheels. The safety bar must be well fixed to the tricycle so that there is no risk of the bar moving during competition. The distance from the ground to the centre of the safety bar should be the same as the distance between the ground and the middle of the hub when the tires are inflated to the pressure used in competition. The safety bar must not exceed the width of each rear wheel tire and all tube ends closed or plugged. The safety bar must be fitted 15 mm (+/- 2 mm) behind the wheels. It must be a round tube of at least 18 mm in diameters, made of adequate solid material. Both tube ends must be plugged (see drawing). 

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(text modified on 01.01.09; 01.01.10; 01.01.17) 

