Joined: Sep 2015
Posts: 340
Likes: 72
From: Denver Colorado
Bikes: 2020 Pivot Vault, 1983 Rossin Record, Garneau R1, Mesamods home built gravel/rain commuter bike, 1995 Barracuda A2V modified with Surley single speed dropouts, 1969 Bottecchia junkyard special fixed gear, Cervelo P4, Mesamods 650b klunker
Just google "1 piece crank". You've got lots of options, although the crank is probably fine unless it's bent or the threads are stripped. It's hard to tell until it's been cleaned, but the chain/chainwheel look worn out. 1 pc bottom brackets are pretty inexpensive if the bearings/ bearing surfaces are damaged.