300v

I was at the shop yesterday for some oil Picked up some 300V and when i got home realized i had grabbed 10W40. what weight does everyone run? 15W50? anyone run 10W40? what oil do people run (for racing)? etc! 300V is crazy expensive! lol. -Jason

Hi guys, So, background: 2015 rc390, new to me at 12k kms (Canadian) last winter. Then proceeded to build it into a race/track bike with the following: - PCV (chad map) - akra flash - shift kit - custom exhaust - all the other usual stuff not relevant for this discussion (see pic) Last...

Hi everyone, I'm a new owner of RC390 in Taiwan. I wonder which machine oil you guys choose to use. And my dealer recommend me use the Motorex because he said if you don't use the Motorex, your RC390 may be broken. Is that really? Or it's just an excuse for promoting Motorex? In my opinion, I...

I'm going to do the first oil change this weekend, and for the life of me I can't find the part number anywhere for the oil filter? I'm going with Motul 300V 15W-50 oil