Best suited to a home mechanic or workshop replacing bottom-bracket cups or resolving a specific BB386EVO crank-and-frame compatibility requirement.
The FSA BB386 EVO Adapters BB8630 Cups are a compact solution for adapting bottom-bracket and crankset standards where the frame shell and spindle do not use the same format. They belong to the BB386EVO ecosystem, built around a 30 mm alloy spindle and an 86.5 mm-wide shell arrangement.
The BB386EVO concept combines a wider shell with press-fit bearing cups and was developed to offer broader crankset compatibility than a single frame standard. Adapter arrangements can also reduce a 30 mm bearing interface for 24 mm integrated spindles, making them relevant when fitting compatible crank hardware to an EVO-style frame.
Compatibility is the key consideration here. BB30, press-fit BB30, BB386EVO and threaded 68 mm shells are not interchangeable without the appropriate cups, reducers or spacers. If you are unsure, check your frame’s bottom-bracket shell, crank spindle diameter and crankset model before purchasing; we recommend professional installation where tolerances or press-fit parts are involved.
BB386EVO compatibility
Designed around the BB386EVO bottom-bracket family for bikes using this wider shell standard.
30 mm spindle system
Supports the 30 mm spindle format associated with BB386EVO cranksets.
24 mm adaptation option
The BB386EVO system can be adapted to compatible 24 mm integrated crank spindles with the correct reducer arrangement.
Useful across common standards
The wider BB386EVO design was developed to work with compatible threaded, BB30 and BB386EVO configurations.
Aluminium construction
The published product listing identifies an aluminium body material for a durable, serviceable part.
Black finish
A discreet black finish integrates neatly with most crank and bottom-bracket assemblies.
Check before ordering
Matching the frame shell width, spindle diameter and crankset standard is essential for correct fit.
FSA, short for Full Speed Ahead, is a cycling component brand focused on drivetrain, cockpit, wheel and finishing-kit products across road, gravel and mountain biking. The company operates internationally, with listed bases in Taiwan, the United States and Italy, and supports a wide global distributor network including Australia.
The brand is particularly known for cranksets, bottom brackets and fitment solutions built around modern frame and spindle standards. Its BB386 EVO platform was developed as a wider 86.5 mm PF30-based system intended to broaden crank compatibility across different frame designs.
