The fluid remains viable longer than the service life of the lever. Or at least as long as it takes to spot the next shiny thing and flog the bike and make it someone else's problem.
These were 1yr old levers, on their 3rd bike.
I need to stop getting new Frames and get Bikes instead huh?
These were 1yr old levers, on their 3rd bike.
I need to stop getting new Frames and get Bikes instead huh?