Rotor BB1 RD BSA 68mm Steel Black

SHIMANO ULTEGRA - Bottom Bracket - Press Fit - HOLLOWTECH II - 86.5 mm shell width

With reliable SHIMANO bearings and seals, the SHIMANO ULTEGRA bottom bracket has a long service life.

Οι μεσαίες τριβές ΒΒ86 είναι συμβατές με τους άξονες Shimano. Το κιτ αποτελείται από δύο κύπελλα που πιέζονται σε κάθε πλευρά του κεντρικού ανοίγματος.

Τα κύπελλα διαθέτουν ρουλεμάν CeramicSpeed. Οι μεσαίες τριβές προσφέρουν χαμηλή οπισθέλκουσα, μεγάλη διάρκειας ζωής, σκληρυμένο χάλυβα και τα εξαιρετικά λεία σφαιρίδια των ρουλεμάν CeramicSpeed για μέγιστη απόδοση. 

Bottom bracket cups for the installation of Campagnolo and Fulcrum Ultra Torque cranksets at frames with oversize bottom bracket shells. These specific adapters are made of aluminium and have the same bearing seat function as the already renowned Ultra Torque threaded cups. The adapters simply replace the standard cups on frames with oversize bottom bracket shells. The adapters are about 20 grams lighter than standard cups.

SRAM saw the opportunity to make a better press fit system where all the best from BB30 and PressFit™ bottom brackets would be combined into one captivating package. Pressfit 30™ will feature an integrated seal, pre-assembled into the cups, to further prolong bearing life. The key difference with Pressfit 30™ is how the bearings are fitted into the frame. Bearings are housed in nylon cups which will be pressed into the frames bottom bracket shell. This bottom bracket is designed for 30mm spindle cranksets.

Frames will need a 46mm inner-diameter bottom bracket shell to accommodate this system. Pressfit 30™ for road will require a 68mm wide shell while Pressfit 30™ for MTB will require a 73mm wide shell.