Hello!

I have a 1970's era Columbia tricycle. One of the front forks is badly bent, and I need to replace the forks. With it being an older trike, the fork tube(I'm not sure the actual name of the part) is a different size than most of the bicycles you encounter and will not fit. I'm having a hard time finding information that will alllow me to find the part or the size or any information to help educate myself. If possible, I would like to replace the forks with something sturdier and beefier than the OEM tubular forks that come stock.

Here is a picture of the trike:

need replacement forks
I'm sure that there is someone out there that is familiar with this and knows exactly what I need to look for. Like I said, I'll take a set of stock forks if I can figure out exactly what I need to order, but surely somebody makes forks that have wider or deeper dropouts and is sturdier than the original.

If anyone can provide some insight on this I would really appreciate it.
Thanks in advance for taking the time to assist me with this.