11. Tire companies have spent millions of dollars on reducing rolling resistance . 12. Electric vehicles are also often equipped with low-rolling resistance tires to maximize their range. 13. Specialist solar car tyres are employed to reduce rolling resistance . 14. The thicker sidewall also means higher rolling resistance , which reduces the vehicle's fuel economy. 15. The company claims that this design offers less rolling resistance and a faster ride. 16. The specific rolling resistance in Russian bearings varies with both wheel loading and speed. 17. Rolling resistance increases on rough pavement, as does wear and tear of vehicle components.18. Someone already mentioned the lower rolling resistance and air resistance. 19. Rolling resistance is also the reason wheels are not seen in certain historical human civilizations.20. The train's engines must, of course, provide the energy to overcome this broad-sense rolling resistance .
