Ceramic bearings equal increased speed at a lower effort and increased durability for your high-end components. Independent testing shows speed increases approaching 4%, i.e. over 1km a rider can gain 20-40m for the same energy output. More than enough distance for a definitive win.
All these FSA bottom brackets feature:
- MegaExo
- Alloy center sleeve with double o-ring seals
- External oversized ceramic cartridge bearings
- Forged and CNC-machined external bearing cups
- Finish: Anodized cups and sleeve
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Prices: from around £159.99
Review from BikeRadar.com by Guy Kesteven
FSA were one of the first companies to introduce ceramic bearings to cycling and their Mega Exo is certainly silky smooth when new.
However, the design is vulnerable to installation crush damage, particularly with FSA cranks. With no obvious stop point on the taper you need to be very careful and check repeatedly as you tighten to ensure it still spins smoothly.
Even carefully installed ones don’t last as long as they should, with one sample dead and another dying after seven months.
BikeRadar verdict- 3 Stars
“Great when new, but these are silly-expensive, vulnerable to installation damage and don’t last”
Tags: BikeRadar.com, Bottom Brackets, Ceramic Bearings, External oversized ceramic cartridge bearings, FSA, FSA Mega Exo Ceramic, Guy Kesteven, Manufacturers, Products, Review