So I get to where i'm going today, turn off my engine and when I go to roll the bike forward it locks up on me. The tire would spin then catch on one rotation, go past that spot with friction, then spin one rotation, then friction, and on and on. Seemed like it was in the tranny so I drained the fluid right away. It seemed to be pink swirled with some brownish nastiness (I'd just changed it 5 days ago). Put new fluid in and just pushed the thing around for a minute and things freed up and I was on my way. It was, and still is slightly jerky at low speed. I high speed I might hear alittle grinding, but it's hard to tell.
Is it tranny rebuilding time?