whats the best oil for a yfz450

[xander1027]

i was wondering what the best oil to use a yfz450?

[SRH]

i use bel ray "thumper racing" oil 20w 50 synthetic, shifts smooth and what not, its a good oil but its expensive when your changing it almost every other ride $7 bucks a quart

[yfz450rider29]

BEL RAY ALL THE WAY.....check out the sponsors! HAHA I used to run the yamaha oil but since i switched i love it.