Bearing Options

All Extralite hubs and wheels are offered with a choice of ready installed bearings among the best available today.
Despite all bearings come directly from high quality manufacturers our staff individually checks each unit for rolling smoothness and bore dimensional tolerance.
All cartridges feature low-friction rubber seals on both sides.

Abec5 Steel bearings
Famous Abi-Enduro ABEC 5 precision bearings
Standard equipment for all Extralite Road hubs
Plus
Minus

High mileage

High impact resistance

Average best choice for dry environments
and occasional bike washing

 

Good rolling resistance

Sensible to water & moisture inside the hub

 

 

ABI 440C Stainless bearings

Abi-Enduro precision fully stainless bearings
Standard equipment for all Extralite MTB hubs
4-5g average weight-saving on the hubset (compared to Abec5)

Plus
Minus

High corrosion resistance

Highly resistant to water/moisture (inside hub too)

Average best choice for humid environment
and/or frequent bike washing


Medium mileage

Medium rolling resistance

 

 

 

Read well Bearing Tips before attempting a bearing replacement.

 

HDC Heavy-Duty Ceramic

Hi-quality Heavy-Duty Hybrid Ceramic bearing
5-6g average weight-saving on the hubset (compared to Abec5)

Plus
Minus

Good mileage

Low rolling resistance

Medium-high impact resistance

Medium resistance in humid environment

Good choice for best racing performance

Complex installation

Sensible to water & moisture inside the hub

 

HYC HyperCeramic

Latest generation of Hi-quality Hybrid Stainless Ceramic bearing
5-6g average weight-saving on the hubset (compared to Abec5)

Plus
Minus

Good mileage

Low rolling resistance

Low weight

Medium-high impact resistance

Highly resistant to water/moisture (inside hub too)

Best choice for best racing performance

Complex installation

 

XD-15 Ceramic

World trickiest Ceramic bearings ever, extremely durable & non-rustable
4-5g average weight-saving on the hubset (compared to Abec5)

 
Plus
Minus

Low rolling resistance

Highest mileage

Fully openable and rebuildable

Highly resistant to water, moisture and salt

Best choice for maximum racing performance and durability

Complex installation

Expensive

Read well these basic info before ordering the parts.
Bearing replacement is not an easy operation as it may seem.
Additionally the installation of any kind of Ceramic bearings requires a very good specific expertise.
Extralite offers complete tool-sets for hub maintenance: the Pro-tool kit 1 and Bearing-sitter includes bearing inserting tools in every bearing sizes used on UltraHubs / HyperHubs / CyberHubs.
If your hub was originally equipped with standard bearings it will probably require micro-tolerance adjustments to axle and bearing fittings, this
to allow proper bearing rotation and durability (these operations are for real experts only). Alternatively send your hub to us for this servicing.