[Estuche]

Hey, I got one of these:

Bearings feel a bit rough. I was wondering if you'd know how to replace them and what model I should use?

 

[jestep]

My suggestion would be:

Really, you'll probably need to pull it apart to see what bearings they used. Ultra light ISIS setups are generally terrible because of the small size of the bearings. If I remember correctly, this one and some others like KCNC, token, were notorious for lasting only a handful of rides before going to crap. The platinum pro and other 4 bearing BB's were some of the only ISIS ones worth using.

 

[Estuche]

Haha nah, I'll use them on a good weather weenie commuter. Crazy light at 120gr + Zipp cranks at 325gr should be nice.

For reference, I figured it out: MR21531 Enduro bearings.