Still useful after 12,000km, including rainy weather.
Attached to a VTR and used for about 12,000km including rainy weather driving in the main commuting mode. I adjusted the Chain tensioning twice along the way, but the Adjuster still had plenty of room to spare and I felt like I could ride it twice as much already. (I gave the VTR away to a friend, but I'm still using it.)
Even after running in the rain, I didn't do maintenance (cleaning and refueling) often, about once a month, and I parked the bike in the blue sky (when I know it's going to rain, I'll cover it) If it's this useful, I think it's going to last a lot longer. 。 It depends on a variety of conditions, so it may not last as long as it should.
The Black scale is black, so dirt doesn't stand out too easily, and it doesn't look too dirty even with the maintenance frequency mentioned above, which is a good thing for commuting vehicles.