Electronic – this round 6 pin connector

I am trying to connect to an e-bike controller to reprogram it, and have to find the female counterpart to this connector for this purpose. Ideally, I want to find the part that will plug into this.
I've spent a couple of hours going through lists of connectors, but no luck so far.

Here is a photo showing the cable connector I have:

• 6 pins
• external diameter ~8mm
• internal diameter ~6mm
• as shown on the photo, there is a flat part on the top side of the photo
• the connection is made by pushing the other part in, no screwing or baionets
• given that it is on an outdoor bicycle kit, I'd think it has a reasonable water-tightness rating.
• it says "JULET" on the side of the connector (it's hard to see this on the photo)
• the casing is somewhat flexible plastic material

Any tips would be great!