Does it need a bolt at the grade (if the rest of the route was 26, probably not. As a popular 20, my memory is yes)
Has it come out or has the nut loosened?
If the nut has loosened it's probably ok for another 10 years, if it's coming out look up the methods for bolt-spinning to cut a groove in the wedge and pull the unit out, overdrill and glue in something decent.
No matter what you do 51% will complain |