2012 best motorcycle spark plug 1)11 years make experice in auto parts 2) ... torque 25NmReplace after km 60 000 bosch saprk plug fit forIridium, platinum spark plug to replace NGK, DENSO, BOSCH, CHAMPION, AUTOLITE, ... 3) Strong resistance to heat and shock 4) Superb insulation 5) Nickel plated housing prevents oxidation and corrosion 6) Copper ... , U24FSR-U LR8A, LR8B hot!2012 best motorcycle spark plug