Rotor Bottom bracket bb1 bb bsa ceramic

BSA type cups for road bikes with threaded housing.

• Black cups, ceramic bearings.
• Use of new non-contact labyrinth seals that give exceptional fluidity and unmatched protection against dust, water and mud.
• Developed in partnership with the CERVELO TEST TEAM during the 2009 season.
• Compatible with all ROTOR (standard BB24), Shimano and SHIMANO compatible cranksets.

Your bike creaks when you press hard on the pedals, the movement of the crankset has lost its fluidity or has become sloppy? The symptoms are clear: it's time to change your bottom bracket. Like all the parts that make up your bike, the bottom bracket and especially its bearings are subject to wear.

Its replacement is a simple operation if it is well prepared, indeed the multiplication of the standards of bearings, bottom bracket and frame will discourage some. We will try to guide you through this jungle of standards. The bottom bracket is the interface between your crankset and your frame, so the first thing to do is to identify which crankset you want to fit in which frame ?

Internal case diameter*Box width*MountingStandardRecommended bottom bracket axle**34.8 mm68 mmScrew onBSA / BSC24 mm / GXP / Dub 29 mm36 mm70 mmScrew onItalian24 mm37 mm90.5 mmPress onBB 90 (Trek)24 mm / GXP / Dub 29 mm41 mm86.5 mmPress onPF 86 (Shimano)24 mm / GXP / Dub 29 mm41 mm89,5 mmÀ PresserPF 90 (Shimano)24 mm / GXP / Dub 29 mm42 mm68 mmÀ PresserBB 3030mm / Dub 29 mm42 mm79 mmÀ PresserBB Right30mm / Dub 29 mm46 mm61 mmÀ PresserSpecialized30mm / Dub 29 mm46 mm68 mmÀ PresserPF 3030mm / Dub 29 mm46 mm79 mmÀ PresserBB Right PF 36030mm / Dub 29 mm46 mm86,5 mmÀ Presser386 EVO30mm / Dub 29 mm

We advise you to disassemble your original box to measure precisely the dimensions of the bottom bracket of your frame.** This compatibility is given as an indication, there are also boxes "adapters" that allow to mix the standards.

Characteristics:

• Casing width old_68-73mm Casing standard BSC
• BSA Caster internal diameter 34.75 Ceramic bearing quality Bottom bracket axle 24 mm Shimano Hollowtech II crankset standard
• Race Face X-type
• FSA MegaExo
• Rotor 24mm