Extralite Hyper BB BSA MTB/Road Racing Bottom Bracket From 65 gr.
Extralite Hyper BB BSA 68-73 mm MTB/Road racing bottom bracket compatible with 29 mm (DUB) or 30 mm axle diameter cranks. This axle diameter in combination with the external bearings increase the stiffness of the cranks and extend the service life of the bearings. BB cups are made of aluminum CNC machined with BSA threads (compatible with 68 mm or 73 mm BSA threaded frames) and then black anodized, bearings are high quality ones and are available with some options (ABI-Enduro Standard, ABI-Enduro Stainless, HyC HyperCeramic, XD-15 Ceramic). Only 65 gr. weight (with HyC Hyper Ceramic bearings). Installation (from inside BB shell) require cartridge type BB tools (Octalink, ISIS, etc.).