I‘m sure that it's me and not the bike because I've had this problem on my Ninja 300 and R6 and I‘m a new rider. But sometimes when I switch from 1st to 2nd gear it's often not smooth at all and feels and sounds like something is not right. When I switch up past 2nd everything is fine. I usually switch when my Rpms are between 6 and 8 K. I also tend to wait about a second after I stop accelerating to hit the clutch and shift into 2nd because when my rpms go higher and I do it faster that's usually when I feel the gears like rubbing very hard on each other. Anyone have any ideas or suggestions. Also what rpm do you guys normally shift at? When I get to 8k it seems like a lot to me but it can of course go way higher.