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Description
CeramicSpeed BB ALPHA Bottom Bracket - T47, 73mm, For SRAM DUB Spindle, MTB, BlackA bottom bracket built to outlast your frame BB ALPHA features hardened stainless steel races hand built with grade 3 Silicon Nitride ceramic balls, custom engineered seals and precision dust covers, delivering up to 500% better moisture protection, while still providing ultra low friction performance. The simplified spacer tube design and lighter 7075 aluminum cups ensure quick installation and a 10% weight reduction over previous generations. All
A bottom bracket built to outlast your frame - BB ALPHA features hardened stainless-steel races hand-built with grade-3 Silicon Nitride ceramic balls, custom-engineered seals and precision dust covers, delivering up to 500% better moisture protection, while still providing ultra-low friction performance. The simplified spacer tube design and lighter 7075 aluminum cups ensure quick installation and a 10% weight reduction over previous generations. All CeramicSpeed BB ALPHA models are handbuilt in Denmark and backed by a lifetime warranty.- Hardened Stainless Steel races offer exceptional corrosion protection and provide an optimal surface for the hand-built grade-3 Silicon Nitride ceramic balls
- Internal ball bearing race has been redesigned to provide additional support, allowing the bearing to better handle pre-load
- Custom-made light contact seals with stainless steel covering the backside strike the perfect balance between efficiency and protection, while offering the trademark low-friction CeramicSpeed performance
- Inside the BB ALPHA, the bearings have been moved further out in the cup, allowing the incredibly stiff POM plastic dust covers to now sit flush with the outer edge of the cup, making it increasingly difficult for debris to penetrate the dust cover and contaminate the bearing
- Simplified spacer tube design and lighter 7075 aluminum cups ensure quick installation and a 10% weight reduction over previous generations
Product Specifics
- Bottom Bracket Shell I.D.: 46
- BB/Frame Interface: T47
- BB Shell Width (mm): 73
- Weight: 114
- Spindle Interface Type: SRAM DUB
- Defined Color: Black
Today's Stock Status
2 Available to ship in 2-4 Business Days
UPC: Not available
EAN: 5711050144082
Manufacturer Part Number: 115560
CR5506
195465-Q0-L
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4.3 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
This is a great book to begin your study on all the groups ...
Format: Paperback
This book isn't just about pyramids. It talks a lot about all the different groups and waves of people who traveled to the American continent, mostly the Latin American areas. There is so much information contained therein that I intend to read this book again. This is a great book to begin your study on all the groups who traveled to Latin America.
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Reviewed in the United States on May 14, 2018
★★★★★ 5
Good read
Format: Kindle
Very well written, personable, and good research. Several references were made about Noah and Moses as if they were valid historical people and their related events, which most scholars agree were 'lifted' from Sumerian and Akkadian legends. Doesn't give much credit to Zechariah Sitchin, never even mentions Enlil and Enki - it's like talking about Kennedy's last trip to Dallas without mentioning the Grassy Knoll.
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Reviewed in the United States on September 28, 2015
★★★★★ 3
Interesting
Format: Hardcover
Great perspective and well-presented discussion. Beneficial for contemplation and developing hypotheses or questioning documented science to further discern evidence or seek new explanations. Recommend reading through a lens of correlation does not equal causation.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Professional and fun to read
Format: Paperback
The book is written by a professional who provides ideas and reasons about possibilities without being dogmatic.
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Reviewed in the United States on February 20, 2022
★★★★★ 4
Absolutely Not Nonsense
Format: Hardcover
At first glance, this book might be mistaken for "Chariots of the Gods" hokum -- it's about pyramids, it suggest prehistoric connections between widely scattered civilizations, and it has an entire chapter on planetary catastrophes. However, this is a very serious effort. Granted, it raises a lot more questions than it answers, and can be a little monotonous in spots. But as a former geology major, I didn't spot any pseudo-science (which is not surprising, given that the primary author has a Ph.D. in Geology from Yale) and I found much food for thought.
Sure, if it turns out that the whole theory of cultural diffusion is wrong, (similarities in disparate civilizations are due to migration and interconnection rather than parallel developoment) this book will be little more than an amusing footnote in the history of science. But then, plate tectonics was once a crackpot theory. This is a serious book that deserves to be read.
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Reviewed in the United States on December 6, 2003