ID Braze-On Adaptor - 28.6mm - Silver
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Merlin CyclesIson Distribution Silver I.d Braze-On Adaptor - 28.6Mm
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Product Information
Full details
The ID Braze-On Adaptor is designed for road and gravel cyclists looking to bridge the gap between braze-on front derailleurs and standard bike frames. It offers a lightweight, secure mounting solution for 28.6mm seat tubes, allowing you to use professional-grade braze-on components on frames that lack a dedicated braze-on mount. While it provides excellent flexibility for component upgrades, users with seat tubes larger than 28.6mm will need to source additional shims to ensure a proper fit.
All features
| Model Part Number | GFIDBA1S |
|---|---|
| Brand | ID |
Extended Product Information
FAQs
Can I use this on a carbon frame?
Yes, but ensure you do not overtighten the bolt, which could crush the seat tube. Using a torque wrench is recommended.
Does it come with shims for larger frames?
No, this product is designed for 28.6mm tubes. Additional shims must be purchased separately if your frame is larger.
Is this compatible with all braze-on derailleurs?
It is compatible with all standard braze-on front derailleurs that follow the industry-standard mounting geometry.
What tools are needed for installation?
You typically only need a standard 4mm or 5mm Allen key, depending on the bolt head provided.
Does the alloy rust?
As it is made of forged alloy, it will not rust like steel, though it should be kept clean to maintain its appearance.
Troubleshooting
Clamp rotates on the seat tube during shifting
Ensure the seat tube is clean and free of grease; increase bolt torque slightly, or use a thin strip of high-friction frame tape.
Derailleur is too high or too low
Utilize the adjustment slot on the adaptor to fine-tune height without needing to loosen the main clamp.
Pros and Cons
Pros
- Lightweight 30g design
- Easy installation with hinged clamp
- Allows for fine-tuning of derailleur height
- Durable forged alloy construction
Cons
- Strictly sized for 28.6mm seat tubes by default
- Requires additional hardware/shims for larger tube diameters
- Limited to round seat tubes
Setup, Compatibility & Care
To install, open the hinge and position the clamp on your 28.6mm seat tube. Ensure the derailleur mounting tab is positioned at the correct height relative to your chainring. Tighten the clamp bolt until firm, ensuring it does not rotate on the tube. If your seat tube is larger than 28.6mm, you must use high-quality metal or plastic shims specifically designed for bicycle frame diameters. Regularly check the clamp bolt during your maintenance intervals to ensure it remains tight, and wipe the alloy surface clean during bike washes to prevent oxidation.