HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter, for increased stiffness and efficiency.
HollowTech II integrated bottom bracket seal design has minimal bearing interface, ensuring smooth rolling and increased durability.
Products & specifications shown on this website are believed to be correct, but are not guaranteed. No liability is implied or accepted. If in doubt, you are advised to confirm current specifications, before buying. At present, our stock control system is entirely manual. Whilst we endeavour to keep our records up to date, we are not infallable! Please do not rely 100% on us having an item in stock even if it says so on the website! IF YOU NEED A DEFINATE ANSWER, PLEASE CONTACT US (BUT PLEASE STATE HOW MANY OF AN ITEM YOU REQUIRE)!