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Description
E*THIRTEEN HELIX CORE E*SPEC DIRECT MOUNT CHAINRING FOR BOSCH GEN4 CX OR SX MOTORThis e*thirteen Helix Core e*spec direct mount chainring made of steel is suitable for both Bosch Gen4 CX and SX motors due to its design. Depending on the spacer side, it generates a 53 mm or a 55 mm chainline. It is made of cold formed steel and then heat treated, ensuring high durability. Features Chainring for E Bikes with Bosch Gen4 CX or SX motor Two different offsets and chainlines possible Strong and durable Excellent chain retention Made of
This e*thirteen Helix Core e*spec direct mount chainring made of steel is suitable for both Bosch Gen4 CX and SX motors due to its design.
Depending on the spacer side, it generates a 53-mm or a 55-mm chainline. It is made of cold-formed steel and then heat-treated, ensuring high durability.
Features
- Chainring for E-Bikes with Bosch Gen4 CX or SX motor
- Two different offsets and chainlines possible
- Strong and durable
- Excellent chain retention
- Made of cold-formed and then heat-treated steel
- Narrow-Wide tooth profile
Specification
- Application: All Mountain, Enduro
- Mount: Bosch Direct Mount
- Gearing: 1x11-speed, 1x12-speed
- Offset: 13.5, 15.5 mm
- Chainline: 53 mm, 55 mm
- Material: Steel (4040)
Teeth
- 34T
- 36T
Compatibility
- Bosch Gen4 CX Motor
- Bosch SX Motor
Material
- 7050 Aluminium
Colour
- Black
Weight
- 189g / 34T
Contents
- 1 x e*thirteen Helix Core e*spec direct mount chainring for Bosch Gen4 CX / SX1
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.
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Exchange/Return Notes
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4.6 ★★★★★
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Product Reviews
★★★★★ 5
Revives my idealistic heart to hold out for real peace
Format: Paperback
Sometimes it's easy to think the world has become so murky that truth barely matters any more. Kazu Haga keeps it real and shows us how to be nonviolent without becoming martyrs to the cause. The book acts as a reminder that taking a principled stand on violence is the only way change has occurred in history, but also acknowledges that we need to love our whole selves and use our brains to step outside habitual patterns of trauma-triggered violence.
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Reviewed in the United States on February 20, 2020
★★★★★ 5
Good for general knowledge!
Format: Paperback
I'm an IT guy but not an Active Directory SME. If it doesn't have a command line and doesn't route or switch I quickly fall off the cliff of interest in it. That being said, I needed to have a good starting guide and future reference guide to Active Directory so after some Google'ing I settled on this book. While I haven't read it cover to cover yet, I have used it to study up on a few specific areas of AD. It's also got a permanent spot near by work desk for use as a reference guide as needed.
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Reviewed in the United States on October 7, 2024
★★★★★ 5
Good info that helps
Format: Paperback
This had info that helped our AD lockouts issues or at least ease the pain while our vendor figures it out. A powershell command that unlocks all AD users instead of having to unlock each one. In the troubleshooting section
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Reviewed in the United States on November 30, 2024
★★★★★ 5
More than just the most comprehensive book on AD
Format: Paperback
I have been working with Active Directory since it was released in 2000 and even before that if you count its predecessor Exchange's directory. I can confidently say that this is the most comprehensive book on Active Directory that I have ever read. Of course there are all of the basics like designing AD structures, migrations to AD 2022, management of objects and group policies but then all of the AD services are also covered in-depth like DNS, DS, LDS, FS, RMS and CS. Furthermore this book tackles trusts, database maintenance and backup and recovery.
While not a book about Azure AD, there is a ton of information about Azure AD. The author takes the time and effort to compare AD with Azure AD and there are hundreds of references to Azure AD in terms of building out hybrid AD environments, federated identity and notes about how things are done in Azure AD versus AD. The chapter on PowerShell demonstrates scripts for both AD and Azure AD.
Here is what I think makes this book special though, and it is how the entire context for the book is around security, identity and access management. Essentially this book can be viewed as a book on security, identity and access management that demonstrates how to practically implement those concepts in Active Directory and Azure AD. There is fantastic information that explains the concepts of identity and access management clearly and concisely and covers topics such as zero trust, privileged access management (PAM) and more. Then, these concepts are translated into how they are implemented in Active Directory. It's a great way to present the information as it provides real world context and clearly explains the purpose of Active Directory versus purely just describing technical features and functionality. This is the way all technical books should be written.
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Reviewed in the United States on December 10, 2021
★★★★★ 4
Missing some ToC Pages
Format: Paperback
Item shipped missing the first couple pages from the Table of Contents. Otherwise, it is as expected. Using as AD Services reference in Enterprise IT office for junior admins to reference.
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Reviewed in the United States on February 21, 2026