This PF41 bottom bracket features high-quality stainless steel sealed cartridge bearings for reliable performance, whatever your riding discipline. Normally, with bike frames with 41mm pressfit bottom bracket shells, you can only run cranksets with a 24mm spindle, now you can upgrade to the crankset you want, rather than the only one that will fit. The smooth running fully sealed also ensure your drivetrain will keep running smoothly and in all riding conditions. Manufacturer's Part Number: BBPF4130SS
These custom, Swiss made bearings are double sealed, fully serviceable and removable which give a much greater life span than stock units. The bearings are made (as all Hope bearings are) by INA and have been designed to run directly on the crankset axle without using shims or spacers -again increasing life and reliability. Hope use a non-contact, free running labyrinth seal to protect the bearing externally, and the machined aluminium centre tube is sealed internally with o-rings. Standard 6 colours are available on cups - red, blue, silver, black, gold and gunmetal, with the centre tubes being black on the stainless and gunsmoke on the ceramic. Please Note: The 68/73mm width option is the universal type for both MTB and Road bikes, it is not the Hope Road Specific Series model. For the Road Specific model, choose the "Stainless Steel Road" option. Tech Tip: the 68/73mm width option is the most commonly used size for threaded road and mountain bike bottom bracket shells. The wider 83mm width is mainly seen on "downhill" (ie. long travel) mountain bikes. Please confirm the width of your bike frame's bottom bracket shell before ordering.
Precision engineered Dura-Ace 7710 Bottom bracket for Track Octalink splined system.
There aren’t many times a replacement part actually improves your bike but put one on your bike and you’ll wonder why you didn’t install a NINJA sooner. The bearings are housed in an alloy shell and wrapped with plastic and fibre. This fusion of the three materials provides the bearings a solid platform to sit on and extends their lives. A lot of people would be satisfied with this, but they went even further by extending the alloy shell so the right and left sides lock together. This locks the frame, cranks and bottom bracket together and provides unparalleled stiffness.
Specifically designed for the demands of modern road cycling, this square taper bottom bracket features a light alloy build for the best balance of stiffness and reliability without adding any excess grams to your road bike. Featuring a threaded design and weighing in at only 220g, this Campagnolo Chorus bottom bracket is a perfect choice of upgrade for smooth rotative performance alongside your crankset.
Rather than relying on the pressfit shell for alignment, the UBB4630's threaded sleeve locks both cups in place, increasing BB shell stiffness. This also ensures a smooth, uniform spin free from creaks that often plague pressfit while preventing bearing overload. The perfect alignment also means longer bearing life while the sleeve also prevents cable guides rubbing against rotating parts. "The motive for the UBB4630 was to address challenges related to bottom bracket installation and durability with specific frames," said David Martinez, head of engineering at Rotor.
The new, advanced non-contact labirynth seals yield a buttery-smooth spin with unparalleled protection against dust, water and mud. Ultra rigid plastic caps give high compression and deformation resistance, facilitating crisp shifting.
Ceramic bearings for improved performance and longevity.
There aren’t many times a replacement part actually improves your bike but put one on your bike and you’ll wonder why you didn’t install a NINJA sooner. The bearings are housed in an alloy shell and wrapped with plastic and fibre. This fusion of the three materials provides the bearings a solid platform to sit on and extends their lives. A lot of people would be satisfied with this, but they went even further by extending the alloy shell so the right and left sides lock together. This locks the frame, cranks and bottom bracket together and provides unparalleled stiffness.
If you want to make sure you're making the most of every crank rotation when you're on the road, this is the bottom bracket to pair with your FSA ISIS type road bike chainset. With its forged spindle and large upgraded bearings, it gives you super-smooth rotation and outstanding power transfer. Tech Info: Please note - The first two numbers in our options (eg. "68" 70 or "73") relate to how wide your bike's bottom bracket shell is in millimetres. The other three numbers (eg. 118) relate to how long your current bottom brackets spindle (axle) is in millimetres. The 68 and 73mm sizes are the "English thread" type, the 70mm size is the "Italian thread" type - please measure your bike's bottom bracket shell width to confirm which size you need.
There aren’t many times a replacement part actually improves your bike but put one on your bike and you’ll wonder why you didn’t install a NINJA sooner. The bearings are housed in an alloy shell and wrapped with plastic and fibre. This fusion of the three materials provides the bearings a solid platform to sit on and extends their lives. A lot of people would be satisfied with this, but they went even further by extending the alloy shell so the right and left sides lock together. This locks the frame, cranks and bottom bracket together and provides unparalleled stiffness.
These custom, Swiss made bearings are double sealed, fully serviceable, and removable which give a much greater life span than stock units. The bearings are made (as all Hope bearings are) by INA and have been designed to run directly on the crankset axle, without the use of shims or spacers, again increasing life and reliability. Hope uses a noncontact, free-running labyrinth seal to protect the bearing externally, and the machined aluminium centre tube is sealed internally with o-rings.