On a recent trip I had to ride through a long period of rain. About 2 hours in the gear indicator went wonky - showing wrong gear, staying at 0, only working for gears 3-6, etc. Now it picks up at 3 and shows through 6. Not sure if the rain was part of issue - did something get wet? Anyway, anyone have any thoughts or experience on what it takes to work on/fix the gear indicator? Thanks.