If it's only happening in 1 gear I wouldn't think that is good. That is, my guess is it would mean tearing into the transmission. But, that's only a guess based on that very limited bit of information.
Take it to my buddy Josh. He's very trusted in San Diego Sportbike community and does all my work on my bike I can't do myself. He won't jerk you around. He's cheaper than any other shop I know and fully insured.2003 ZX6R making weird grinding noise( sounds like a toy's plastic gears misaligned)
when I ease off the throttle in 5th gear. Only in 5th gear. Any ideas or help is much appreciated.