BB91 Sram-shimano BMX DH Isis BB/bicycle Bottom Bracket
Specifications
BMX DH isis BB/bicycle bottom bracket1.the same as shimano bb50
2.easy to set up to frame
3.OEM and small order avaliable
BMX DH isis BB/bicycle bottom bracket

We've been making our own stainless-steel sealed bearings here at sanyun for 15 years and never has there been a component that benefited more from their quality than the external bottom bracket. The sanyun bottom bracket is specifically designed for crank systems with outboard bearing cups and is available in the full assortment of colors that only sanyun can do.
It all starts with the bearings. We make our own bearings in-house and our process allows us to place more balls per bearing, 24 to be exact, than our competitors. More rolling elements per bearing translates to a stronger overall bearing system. A bottom-bracket specific upgrade to our legendary sealing system allows the bearings to be purged and re-greased using our precision made injector tool. This combination of strength and serviceability gives us the confidence to offer an industry-leading 5-year warranty on our bottom brackets.
COMPATIBILITY
We offer our bottom bracket cups in combination with a plastic center sleeve and three anodized 2.5mm chainline spacers for 24mm crank axle systems such as Shimano Hollowtech II. Only 108 grams.
Also available is the SRAM-compatible 24mm stepped axle configuration. The stepped axle sanyun bottom bracket makes use of a fit kit to match the crank axle to our standard cups and bearings but without use of chainline spacers. 125 grams.
GO FAST
Racers take note! With the sanyun bottom bracket and injection tool, you can train day-to-day with a durable high-viscosity grease and race with a light, fast-rolling low-viscosity grease or oil.

| Rotator | :Sealed Bearing(6002RS) |
| For | :BMX, MTB |
| BB Shell | :68mm,70mm/73mm |
| Material | :Alloy(Sleeve,BB Cups),10B21(Axle) |
| Finish | :Any Color Available |
| Weight | 240g |
| Rotator | :Sealed Bearing(2153114 2RS 215317 2RS) |
| For | :BMX, MTB ,ROAD |
| BB Shell | :68mm |
| Material | :Alloy(Sleeve,BB Cups),SCM430(Axle) |
| Finish | :Any Color Available |
| Weight | 240g |
| Rotator | :Sealed Bearing |
| For | : MTB ,ROAD |
| BB Shell | :68mm,70mm/73mm |
| Material | :Alloy(BB Cups),Nylon(Sleeve) |
| Finish | :Any Color Available |
| Weight | 108g |
1,Shenzhen SanYun Technology Co., Ltd is a famous brand in China mainland and abtain quicky growthing in and out china.SanYun specialized in cycling pedals,axle,headset.We have modern workshop and all kinds of good quality processing equipment and laboratory,R&D,quality control and professional sales teams to service for bicycle market.
2,Our band :"SUNY-LP" is our own top-grade brand for bicycle accessories.SUNY-LP pedals have widly sell in more than 30 province in China mainland. and famous around southaisa and some euro countries.In 2013,Our bike axis and headset will be promoted in ShangHai bicycle fair and TaiWan bicycle Show as our advantages of products.
Our capabilities:We can offer OEM service and work together with our clients for new customized molds.with the growth of our R&D department,more fashion and outshape itmes will workout soon later. Our company has perfect quality management systems with ISO9001 international quality authentication in 2010 and pays great attention to new product development. We have high-quality staff at design, development and production fields, and have introduced in qualified personnel from foreign bicycle enterprise. We have abundant experience in management, with the management theory of "sincere, high-quality, high-efficient, and innovation", offering products of high performance. Customers' satisfaction and needs are eternal pursuit of SANYUN people.
3,Our market:Now selling well in 30 domestic provinces, municipalities and autonomous regions, our series have also been exported to the United States, Europe, Russia, the Middle East, Southeast Asia and other countries and regions.
Perspective&value:We insist on the belief of "integrity is root;quality is first;
customer is supremacy".We provide customers with
excellent products.Our goal is"the pursuit of excellence,
enterprising spirit and surpass ourselves".

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