Bottom bracket road FSA bb8681 m/exo

Product Description

External housing FSA Megaexo compatible with 68mm wide threaded frames. Features:

• Oversized bearing housing for BSA MTB 1.37 'x24T.
• CNC die-cast steel outer cups.
• Composite center sleeve with double seal.
• BSA thread.
• Suitable for 24mm axle cranksets. (Shimano, FSA...)
• Not suitable for Sram
• Suitable for 68mm wide cans.
• 68mm crankcase width
• Standard BSC / BSA housing
• Internal diameter of the gearbox 34.75
• Bearing Quality Steel
• Bottom bracket axle 24 mm
• Crankset standard FSA MegaExo Does your bike creak when you press hard on the pedals, has the crankset movement lost its smoothness or has it become loose? 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 could discourage some. We will try to guide you through this jungle of standards. The bottom bracket is the interface between your bottom bracket and your frame, so the first thing to do is to identify which bottom bracket you want to fit in which frame? Bottom bracket internal diameterBox widthMountingStandardRecommended 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 'adapters' boxes which allow to mix the standards.