bbinfinite M30 DS Ceramitech

Brompton Kitchen Verified independent store

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☘️ Compatible with Praxis Zayante crank ☘️ Weight: 80g per set ☘️ Si3n4 hybrid ceramic bearings feature ultra-spherical silicon nitride balls matched to SAE 52100 chrome steel bear ing races that have been processed with additional heat treatment and polishing steps. The result is a hybrid-ceramic bearing that lasts longer than any steel bearing with spin performance no steel bearing can rival. ☘️ Made in USA ☘️ Installation & re-thread can be done at additional cost Show more