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Description
Bicycle Bike Derailleur Hanger Derailleur Bracket Bike Tail Hook Frame Gear Tail Hook Aluminium Alloy Mountain Rear for Cyclocross, Mountain, Road Racing Bike - 2 PackAluminum Alloy Bicycle Derailleur Hanger Pack of 2 Key Features Sacrificial Design: Engineered to bend or break before your expensive bike frame or rear derailleur is damaged during an impact, acting as a "mechanical fuse" for your drivetrain. Precision CNC Machining: Manufactured from 6061 aluminum alloy to provide the perfect balance of rigidity for crisp shifting and malleability for frame protection. Universal Compatibility: Designed to fit a wide
Aluminum Alloy Bicycle Derailleur Hanger - Pack of 2
Key Features
- Sacrificial Design: Engineered to bend or break before your expensive bike frame or rear derailleur is damaged during an impact, acting as a "mechanical fuse" for your drivetrain.
- Precision CNC Machining: Manufactured from 6061 aluminum alloy to provide the perfect balance of rigidity for crisp shifting and malleability for frame protection.
- Universal Compatibility: Designed to fit a wide variety of frames across mountain, road, and cyclocross disciplines; available in multiple geometric patterns to match specific dropout shapes.
- Anodized Finish: Features a corrosion-resistant coating that prevents oxidation and seizing, ensuring the mounting bolts remain removable even after exposure to mud and road salt.
- Complete with Mounting Hardware: Each hanger in the 2-pack typically includes the necessary set screws or bolts for a secure, flush-mount installation to the frame dropout.
Replaces / Cross-Reference Part Numbers
- Bicycle Tail Hook / Frame Gear Tail Hook
- Rear Mech Hanger Replacement
- Dropout Adapter Bracket
- (Note: Specific part numbers vary by bike brand, e.g., Wheels Mfg #27, Canyon No. 25, etc.)
Compatibility & Fitment
Derailleur hangers are highly specific to the shape of the bike frame's dropout. Key considerations include:
- Bicycle Types: Mountain Bikes (MTB), Road Racing, Cyclocross, and Gravel bikes.
- Frame Material: Primarily used on Aluminum, Carbon Fiber, and select Titanium frames.
- Mounting Styles: Available in 1-bolt, 2-bolt, or 3-bolt configurations depending on the specific "Tail Hook" geometry of your bike model.
- Identification: To ensure fitment, visually compare your old hanger to the product image; even slight differences in the "shoulder" or bolt placement will prevent installation.
When to Replace
- Visible Bend: The rear derailleur looks tilted toward the spokes when viewed from behind. Note: Attempting to bend an aluminum hanger back more than once usually results in a snap.
- Ghost Shifting: The chain jumps between gears or refuses to stay in the smallest or largest cogs despite proper cable tension and derailleur adjustment.
- Impact/Crash: If the bike has fallen on the drive-side (the side with the chain), the hanger is likely compromised.
- Snapped Hanger: The hanger has completely broken off, leaving the derailleur hanging by the cable.
- Stripped Threads: The internal threads where the derailleur bolts on are cross-threaded or flattened, preventing a secure connection.
Installation Tips
- Carry a Spare: This is a 2-pack for a reason. Always keep the second hanger in your saddlebag or hydration pack; a broken hanger is a "ride-ending" mechanical that can only be temporarily fixed by converting the bike to a singlespeed.
- Clean the Dropout: Before installing the new hanger, use a rag and a bit of degreaser to clean the mounting surface on the frame. Any grit trapped behind the hanger will cause shifting issues.
- Grease the Bolts: Apply a tiny drop of blue thread-locker (Loctite 242) or grease to the mounting screws to prevent them from vibrating loose during rough rides.
- Check the Derailleur: If your hanger broke, your derailleur might also be bent. Inspect the derailleur cage to ensure it is parallel to the wheel after the new hanger is installed.
- Hanger Alignment Tool: For the most precise shifting, use a Hanger Alignment Gauge (DAG) after installation. Even brand-new hangers can be slightly out of alignment due to minor frame variances.
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4.2 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Love it
Format: Hardcover
Love. Love. Love.
I love this book.
Every single word in this book is so precious to me.
If Gesenius was like a strict father, this one is like a mother who so kindly elaborates on many difficult notions.
Thanks a lot for such a great book ❤️
(Even if it were $1000, I would buy it! The bibliography is so kindly sorted out by a subcategory~♡)
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Reviewed in the United States on March 5, 2026
★★★★★ 5
An indispensible Hebrew Language resource.
Format: Hardcover
This book is an amazing resource for anyone who has completed preliminary Hebrew such as with Pratico and Van Pelt in their Basics of Biblical Hebrew. This book goes above and beyond, it gives the diagnostic origin patterns for adjectives, patterns in noun formation as well as other components of speech, contrasts each of the seven major verb forms and the minor forms as well, and gives an excellent evolution of the utilization of the Hebrew language and its update in characters.
It explains in its initial history a lot of unique statements in the Torah, and illustrations throughout give the reader an excellent idea about the Hebrew Scriptures. I bought this to aid in designing a language studies course at seminary and it has stood me in great help so far, going beyond anything I would have expected to get out of an intermediate level grammar and is an amazing, invaluable, and priceless resource, both to the professor, and the student. I recommend all people taking Hebrew purchase this book and add it to their collection and read it through cover to cover as well as using it as a topical reference guide.
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Reviewed in the United States on October 30, 2016
★★★★★ 5
can potentially be overwhelming
Format: Hardcover
This is a good resource for introduction to syntax. However, the vast amount of examples has benefits as well as disadvantages. The benefit is that it is comprehensive in information which makes it good for a reference. The disadvantage is that the many subcategories can cause one to be discouraged as the quantity of information may be overwhelming. Nonetheless that is the nature of learning a language.
It is still a good resource if you can maintain the brain power to understand the technical language if you have a novice background to linguistics. The volume could be more pedagogical however that would cater to the self learner and perhaps that was not the intent of the author. This volume seems to be designed for the classroom setting. However it is still decent for the self learner.
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Reviewed in the United States on June 30, 2014
★★★★★ 5
Favorite Hebrew Reference Book
Format: Hardcover
This is the Hebrew grammar that I use the most often. While I also use Williams and Arnold and Choi, this grammar is more comprehensive, and its size certainly reflects this. It probably betrays my inclination towards the exactness of Greek to like this grammar so much. As my Hebrew professor often tells us, all these grammar categories are contrived to some extent, so at some point it isn't helpful anymore to go further in depth on the uses of the so-called "cases."
All in all, I usually find it easy to locate the grammatical point in which I am interested, though sometimes I have to resort to looking up every instance a Hebrew particle occurs throughout the book. For this looking up of various nuances of a particle, I sometimes find Williams more user friendly. Nevertheless, Waltke and O'Connor's volume has been my resource of choice.
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Reviewed in the United States on November 6, 2012
★★★★★ 4
deep
Format: Hardcover
If you are a serious student of Hebrew this is the only way to go. The book explains how the language is built from the ground up. If you are like me you have found learning Hebrew challenging (that's a joke). I have tried learning vocabulary, rote memorization, even coming up with silly English sentences to help me remember words (The goddess "Hera" is quick) (sad, I know). This tool is essential approaching the language from the building block side of things and I am now able to look at the prayer book and recognize forms and tenses I never understood before. It is for the serious student who REALLY wants to learn the language.
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Reviewed in the United States on February 27, 2009