Shimano Dura-Ace BB-7710 BSA Track Bottom Bracket

Shimano Dura-Ace BB-7710 BSA Track Bottom BracketThe Dura Ace BB 7710 is the perfect choice for the Urban Rider or the seasoned Track Professional. With exceptional quality sealed bearings, the BB 7710 is the choice of many of the Japanese Keirin riders as the weather is less likely to get into the bearings thanks to Shimano's Sealed Bearing Technology. These Bottom Brackets only suit FC 7710 Dura Ace Track Cranks. We are often asked if the BB 7710 or the BB 7700 is the best option, and the answer

The Dura-Ace BB-7710 is the perfect choice for the Urban Rider or the seasoned Track Professional.

With exceptional quality sealed bearings, the BB-7710 is the choice of many of the Japanese Keirin riders as the weather is less likely to get into the bearings thanks to Shimano's Sealed Bearing Technology.

These Bottom Brackets only suit FC-7710 Dura-Ace Track Cranks.

We are often asked if the BB-7710 or the BB-7700 is the best option, and the answer is pretty simple – Do you ride Track or on the Street?
Our handy breakdown below might help you make a decision too.

BB-7710
Sealed Bearings
Suitable for people riding in all weather conditions
Little to no maintenance required
Cannot be serviced
Weight: 244g

BB-7700
Unsealed bearings
Suitable for Indoor track racing (and out-door in fair weather)
Requires yearly maintenance
Requires pre-load adjustment for correct setup – We recommend a skilled mechanic
Fast Rolling
Can be re-built and overhauled by a skilled mechanic
Weight: 173g

Typically, for anyone riding fixed or on the street we always suggest and encourage the BB-7710 bottom bracket.
If you’re a Track rider and only using it on the indoor Velodrome, the BB-7700 is by far the fastest rolling option – when setup correctly.

SPECIFICATIONS
Bottom Bracket: BSA Threaded (1.37" x 24tpi)
Shell Width: 68-69mm
Axle Length: 109.5mm
Axle Type: Steel
Spindle System: Octalink
Suits: FC-7710 Dura-Ace Track Cranks only
Weight: 244g