My 2005 Dahon Speed P8 needs a new bottom bracket. I am presently
rebuilding the left bearing but it will only be temporary, at best.

The part number shows
CH51-68
113.5L
BC1.37x24T

I THINK that:
CH51 is the manufacturer code
68 is the case width in MM
113.5L is the shaft length in MM with a left offset
BC1.37x24t is the threading.

Will a 68-113 be a good replacement?
If not where can I find the proper replacement?

CE