Originally Posted by
imgreen
First of all I'd like to say that I have a Pedelec Foldable Bike, from Longwise, a company probably nobody heard of. I bought a crank puller and took the crank out, it is a Lanhang-52T-170L-quite heavy.
I went to 3 bike shops but I didn't find anything like it, they were either smaller or had more than one gear.... *phew!* I was also told that the thread couldn't be replaced/fixed.
Sounds like its a chinese electronic folding bike with a single speed type crank? Maybe search for the crankset name and try to buy something similar online. Is this close to it?
Aliexpress.com : Buy Lanhang, Single Speed Fixed Gear Crankset, 46T 170mm BCD 130mm.Retro Bike, Track Bike Racing Crankset, CP style. from Reliable gears of war series 2 suppliers on Sherlock's Fixed Gear and Bike Bicycle World | Alibaba Group
Worse case, you should be able to replace the crankset with another brand as long as the chainline is similar. Would also have to replace the bottom bracket, but that shouldn't cost much more.