Miller Butterfly 2 bridge diameter

[UrbanTreeFaller]

Hi everybody 😉

 

Can anyone here help me?

I've been a happy government treeworker for nearly 3 years. DRT climber, one prusik and one Spiderjack 2.1 Dyneema 😉.

Topic is not about my choice of climbing gear.

 

But I have been tweeking my climbing gear-connection on my Miller Butterfly II bridge. 

And the latest setup I would like to try is a Hydra pulley by Rock Exotica, instead of the DMM ring and swivel ring I use now.

But no idea if this bad boy will fit on my Butterfly II bridge. Bridge is not round shaped.

No idea what the diameter of my bridge is, harness is at my work behind a closed locker door 😆. I am on a long holiday/break, so no way to check the diameter. And no idea what the diameter of the pulley of the Hydra is. Can't find it online.

So, can anyone tell me, will the Hydra pulley fit and run smoothly on my bridge? Sizes in cm or mm please.

 

Thx 😉