Bought new in Feb 2017, 25K miles flawless then motor starts "ticking" a few days ago. Service manager calls me yesterday and informs me that motor is full of metal particles, very frustrating. Love this bike but unsure of continuing with it with a Stage rebuild or trading for a '19 Limited. Wondering if a stage rebuild will have any more longevity? Recommendations and advice appreciated.
You have a lot of determining factors to consider.
1. Is the bike paid off?
2. Is the bike still under warranty?
3. Are you tired of your bike and really want a new one anyway?
4. Would you be happy riding your current bike for another 5 years?
5. and probably many more questions.
If it's under warranty and you can get it fixed for free - obvious answer.
Once fixed, do you want to invest in an extended warranty?
25k is not a lot of miles. An extended warranty of 5 years would be you down the road for a long time.
Or if you want a new bike .. well no amount of reasoning and calculations really matters.

DH