It all depends on where the decimal point is in that 2250
If it’s after to 0, that’s a bad deal. If it’s anyplace else, not so bad. If 2nd gear is going I wouldn’t expect any part of the transmission to be in good shape, and honestly most of the drive train is going to be dicey. But if you don’t mind doing the work yourself, $225 wouldn’t be a bad price for what is essentially a parts bike.