I only use mechanical ones
I rode about 5,000 km on a 6,800 km bike and the right shifter broke.
I rode about 7,000 km on an 8,000 km bike and the right shifter broke...
Beyond things like shifter coating or lubrication,
I think it breaks much sooner than I thought (it breaks about 1 cm from the shifter head).
It's a burden to go to Di2...
Once the shifter breaks,
I do self-overhaul for both purposes,
and my weekend is over ㅠㅠ
