i think after your odo's reach 1000km is good,use Motul or whatever brand u think that is best for your bike,but if u can find Royal purple then go for it...worth to try it...
i think after your odo's reach 1000km is good,use Motul or whatever brand u think that is best for your bike,but if u can find Royal purptle then go for it...worth to try it...