u/Far_Anywhere_9361

Spin bike bottom bracket ISIS question

Spin bike bottom bracket ISIS question

https://preview.redd.it/vks05jxnti2h1.jpg?width=3024&format=pjpg&auto=webp&s=edd2bf6b8f576916474af8a3c066b1f20468aa85

I have a Cycleops Phantom spin bike with an ISIS bottom bracket. I removed the BB bolt then pulled off the crankset to find the spindle looking like this. I don't know whats that extra silver washer bolt thing inside the spindle, and I need the inside of the spindle to be the standard bolt size (like in this 2nd pic of a regular ISIS BB). Is there a way for me to remove that center bolt/rod thing, or do I have to replace the entire ISIS BB?

(For reference that 2nd pic with the bronze colored BB is from a separate bike project. Its the large bolt diameter in the center that I need to have for my new spin bike ISIS cranks)

https://preview.redd.it/duy8egdhti2h1.jpg?width=3024&format=pjpg&auto=webp&s=75d3cc6893b9beaa4080bc902360634abd831ae0

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u/Far_Anywhere_9361 — 2 days ago