Problem with eccentric

[bouced]

Hello again

The previous owner sent me a link to the eccentric he installed on the bike: https://funecobikes.com/product/boitier-de-pedalier-excentrique-aluminium-pour-tandem.

The part is made of aluminium and my frame is made of steel. Isn't there a risk of corrosion.

I will try to remove the screws next week and tell you.

Thanks again