MTB UDH Rear Derailleur Hanger M12 Thru Axle Tail Hook
MTB UDH Rear Derailleur Hanger M12 Thru Axle Tail Hook
MTB UDH Rear Derailleur Hanger – Universal Thru Axle Tail Hook
Keep your mountain bike shifting smoothly with this precision-engineered Universal Derailleur Hanger (UDH) Rear Tail Hook. Compatible with M12 x 1.0 and M12 x 1.5 thru-axle standards, this replacement hanger is designed to fit a wide range of modern MTB frames that use the Shimano/SRAM Universal Derailleur Hanger specification. Crafted from aluminum alloy and reinforced plastic, it offers a strong yet lightweight solution to protect your derailleur and keep your drivetrain aligned on every trail.
Key Features
- Universal UDH Compatibility: Fits M12 x 1.0 and M12 x 1.5 thru-axle configurations for broad frame compatibility
- Durable Construction: Made from aluminum alloy and plastic for the ideal balance of strength and weight savings
- Precise Fit: Dimensions of 38.4 x 65.3 mm (1.51 x 2.57 in) ensure accurate alignment for your rear derailleur
- Lightweight Design: Net weight of just 26 g — you won't feel it on the trail
- Complete Kit: Includes 1x bolt, 1x washer, and 1x tail hook — everything you need for installation
- Sleek Black Finish: Clean, stealthy look that blends with most MTB frame colorways
Specifications
| Material | Aluminum Alloy + Plastic |
| Specifications | M12 × 1.0 / M12 × 1.5 |
| Size | 38.4 × 65.3 mm (1.51 × 2.57 in) |
| Color | Black |
| Net Weight | 26 g |
| Gross Weight | 35 g |
| Packaging Size | 13 × 8.5 × 5 cm (5.12 × 3.35 × 1.97 in) |
| Package Contents | 1× Bolt, 1× Washer, 1× Tail Hook |
| Country of Origin | Made in China |
Why Replace Your Derailleur Hanger?
Your derailleur hanger is designed as a sacrificial component — it bends or breaks to protect the more expensive derailleur and frame during impacts. Keeping a spare UDH tail hook on hand means you're never stranded on the trail. This universal UDH design makes it easier than ever to swap in minutes and get back to riding.
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Frequently Asked Questions
Q: What MTB frames is this UDH rear derailleur hanger compatible with?
A: This UDH tail hook is designed to fit any mountain bike frame that uses the Universal Derailleur Hanger (UDH) standard with M12 x 1.0 or M12 x 1.5 thru-axle threads. Many modern MTB frames from major brands have adopted the UDH standard — always verify your frame's axle thread pitch before ordering.
Q: What is included in the package?
A: Each package includes 1 UDH tail hook, 1 bolt, and 1 washer — everything required for a straightforward installation on your MTB frame. No additional hardware is needed.
Q: How do I know if I need the M12 x 1.0 or M12 x 1.5 version?
A: The thread pitch (1.0 or 1.5) refers to the spacing between threads on your thru axle. You can check your bike's owner manual or measure your existing thru axle with a thread pitch gauge. When in doubt, consult your frame manufacturer's specifications to confirm the correct version for your bike.
Q: Is this hanger easy to install at home?
A: Yes! The kit includes all required hardware. Simply remove your rear thru axle, swap out the old hanger for this new one, reinstall the axle with the included bolt and washer, and check your rear derailleur alignment. Basic bike tools (hex keys) are all that's needed.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.