- Shimano BB-R60 Ultegra 6800/105 5800 Hollowtech ii
zoom Shimano BB-R60 Ultegra 6800/105 5800 Hollowtech ii
Shimano BB-R60 Ultegra 6800/105 5800 Hollowtech ii
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Shimano BB-R60 Ultegra 6800/105 5800 Hollowtech ii bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency.
Top Features of the Shimano BB-R60 Ultegra 6800/105 5800 Hollowtech ii
- HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability
- Required for installation of FC6800/FC5800 chainsets
About Bottom Brackets
Bicycle bottom brackets connect the cranks to the bike and allow the crank arms to rotate. There are various sizes of bottom bracket shell on the market, so compatibility needs to be checked. The three most common frame bottom bracket shell widths are 68mm (English threaded road and mtb), 70mm (Italian threaded road) and 73mm (British threaded mtb). There are also many axle shapes and styles, from JIS or ISO square tapers through to the round splined axles such as ISIS or Octalink and then there is the new external cup systems which have the axle built into the crank arms. Some frames are now using the new BB30 system which uses bearings pushed directly into the frame and removes the needs for cups to be threaded into the frame.
About the Shimano brand
Shimano are the makers of the world's most well known cycle component brand. Established in 1921 when the first cycle freewheel was forged. Shimano produce drivetrains, wheels, pedals, shoes, cycling clothing and pretty much every Shimano cycle accessory you can think of! Famous for their top end products ridden by the pro's, Dura-Ace and XTR, which cover both road and MTB's. At Shimano, they're doing everything they can to respond to heightened environmental concerns. Shimano are proud to be a producer of bicycle components that help people to enjoy outdoor sports and interact with nature through healthy non-polluting activities. In their 87 plus years of existence Shimano have accumulated a wealth of technology and product development and expertise that serves as the driving force behind their continually evolving product line.
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Product Q & A
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I am fitting this to my specialized secteur elite
I am looking to change a bb in a trek 1 2 wsd from a traditional to a hollowtech can this be done?
Or do I have to stick with the traditional bb ?
I hope this helps.
I've got clearance in the frame as it's a straight through BB shell and the cable runs clear.
What I need to know is if there is enough clearance on the centre of the bottom bracket tube (as in difference between the plastic tube and the thread on the cups) to allow a cable to be routed through the BB shell.
The plastic tube on the FSA BB has little if any clearance this one looke as if it has a lot more?
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