Has anyone ever replaced the little plastic gear at the front axle that drives the odometer? Mine has worn out and when I went to the dealer, they said I have to buy the whole unit (outer wheel spacer plastic gear and seal). It's 139.00$. If you just pull off the seal the plastic gear slides out. Seems kind of stupid that I have to buy all tree parts when the gear is made of plastic so it fails before any other parts do. I can't believe Yamaha would rip people off like that. Just wondering if I got a bonehead parts guy or if thats the way it's sold? Anybody have a spare one hanging around they want to sell?