Joined: Dec 2019
Posts: 2,841
Likes: 1,062
From: South Shore of Long Island
Bikes: 2010 Carrera Volans, 2015 C-Dale Trail 2sl, 2017 Raleigh Rush Hour, 2017 Blue Proseccio, 1992 Giant Perigee, 80s Gitane Rallye Tandem
Change the cassette and live with the gears you can't push. There are aftermarket cassettes that start with a 12t or sometimes even a 13t or 14t, brands like Miche. I'd live with the slightly heavier cassette and run wider gears and a new chain over swapping a crank. Might always need the old chain and cassette on something else at a later date.