hmm
de galus1, 22 ene 2018
In this bearings aren't good materials.
¿Te fue de ayuda?
de , Blue Tomato, 24 ene 2018
Hi! This bearings are made of steel and are prelubricated for a fast ride. Please send us some photos if you are not satisfied with the bearings. Thank you! Best Regards, Boris, BT CUSTOMER SERVICE