VW1302 bumper protector

Bumper protectors were set in places on the rear bumper end for preparing the 2 years periodical Legal Inspection according to the Road Vehicles Act next spring. This the measures of an accident that happened in the past with a bicycle,  a miserable bicycle driver dragging it's wheel sandwiched between the cavity Beetle's rear fender and the it's rear bumper. So the thickness there was specified below 35 mm, the value should be the bicycle's tire width? As for my VW 1302 Beetle, the original bumper was replaced into a poor quality ones for front and rear when face-lift had been done. Lack of the end length invited 45 mm space there, this is the reason why I applied plastic ugly protectors on the rear bumper. Though have I not a little regret after that, must I follow the Legal Regulation anyway.
Beetle's carburetor repair kit and a diaphragm fuel pump were ordered together with bumper bolts, the positions of the fuel inlet nipple and outlet one were at different relations compared with indigenous one, I knew the construction after breathing in or smoke was blown, care must be taken on the rubber fuel hoses arrangements including adequate length promptly.