The bottom bracket is a component that usually does its job without making a fuss, and Shimano knows how indispensable it is to your drivetrain, which is why they ensure smooth bearings, advanced sealing, and high manufacturing tolerances. With the Ultegra SM-BB72-41B PressFit Bottom Bracket, you're able to press this component right into the frame, working with the Shimano HollowTech crankset and any frame equipped with a BB86 bottom bracket shell. Two steel cartridge bearings are featured with this bottom bracket, and they are pressed into composite cups which increase the outside diameter to 41mm to match the frame's bottom bracket shell. A 1.75mm thick outer-lip provides a positive stop for the cups when they're pressed into place.
Features
- Bottom bracket with small ball bearings for lightweight
- Advanced seal construction for smoother rotation
- Dura-Ace proven four-arm design with similar stiffness
- 14g lighter than the SM-BB6700 but maintains the same durability
- Weighs in at 69 grams for optimal lightness
Specifications
| Material |
[shell] composite, [bearings] steel |
| Shell Type |
BB86 |
| Shell Width |
86.5 mm |
| Axle Type |
Shimano Hollowtech |
| Recommended Use |
cyclocross, gravel, road cycling |
Warranty Information
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3 Years Warranty on Dura-Ace and XTR Components
-
2 Years Warranty on all other Shimano Components
-
1 Year Warranty on all Shimano footwear, clothing and wheels
About Shimano
Established in 1921.
Shimano is the world's largest manufacturer of bike components.
Today Shimano globally operates three key businesses, with sales offices and factories all over the world. They will continue supplying “captivating products” to help promote the bicycle and sports fishing cultures
Japanese company Shimano is the most popular groupset manufacturer with a range of groupsets at different prices. It’s constantly updating the other bike components too, with the newest features debuting first on its top-end technology, Dura-Ace, before eventually filtering down through the range.
Their bicycle components division has a wide range of product line-ups such as brakes, pedals, wheels, gears, chain sets etc., and represents 80% of the company’s total revenue.
Shimano has about 70% of global share in bicycle gears and brakes, and approx. 50% of the overall bicycle components market.
Shimano’s products are designed to meet customer needs for easy, trouble-free installation with a guaranteed great result every time. Some factors that aid Shimano to stay ahead over their competitors are as follows: Economical prices client-friendly service timely delivery wide distribution network ethical business operations transparent deals the team carries out a comprehensive range of tests on all components and finished products to ensure we meet or exceed all the international standards. Their quality commitment extends to social, ethical and environmental responsibilities and Shimano are proud to be members of all the key industry associations.
