PASS QUEST Road Bike Front Derailleur Extender
Fine-Tune Front Derailleur Position. Expand Chainring Setup Options.
The PASS QUEST Front Derailleur Extender is CNC-machined from aluminum alloy and designed to adjust the mounting position of compatible road bike front derailleurs. By raising or lowering the derailleur, it may help accommodate different chainring sizes on compatible frames and drivetrain setups.
Compatibility — Please Read Before Ordering
Front derailleur compatibility varies by frame design, mounting interface, derailleur model, and drivetrain generation. This product is not compatible with every road bike.
Currently Supported Systems
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Shimano 11-speed mechanical: Selected models in the Tiagra 4700, 105 7000, Ultegra 8000, and Dura-Ace 9100 series.
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Shimano 12-speed electronic: R9200 and R8100 series.
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Shimano 105 R7100: Not currently supported.
Please contact PASS QUEST customer service before ordering. Provide the following information so we can help check compatibility:
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Bicycle brand, model, and model year
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Front derailleur model
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Clear photos of the front derailleur and its mounting area
Compatibility information is updated as additional models are tested and verified.
Key Features
1. Adjustable Front Derailleur Position
The extender allows the mounting position of a compatible front derailleur to be adjusted upward or downward. This may help accommodate alternative chainring sizes where the original mounting position limits adjustment.
2. Precision CNC-Machined Aluminum Alloy
Manufactured using precision CNC machining, the extender features smooth contours and a carefully finished structure designed for reliable mounting and everyday use.
3. Anodized Surface Finish
The anodized finish provides a refined appearance and helps protect the aluminum surface against corrosion and everyday wear.
4. Secure Screw-Mounted Installation
The extender is secured with mounting screws to provide a stable attachment when correctly installed. Installation time depends on the frame, derailleur, and required adjustments.
5. Designed to Expand Setup Options
On compatible bicycles, adjusting the front derailleur mounting position may help provide the clearance needed for certain alternative chainring sizes. Actual compatibility depends on the frame, derailleur geometry, chainring size, and drivetrain specifications.
Technical Specifications
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Brand: PASS QUEST
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Product Type: Road Bike Front Derailleur Extender
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Material: Aluminum alloy
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Manufacturing Process: CNC machining
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Surface Finish: Anodized
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Installation: Screw-mounted
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Supported Systems: Selected Shimano mechanical 11-speed and electronic 12-speed front derailleur systems
Important Installation Notes
Before installation, confirm that the extender is compatible with your frame and front derailleur mounting interface.
After installation, check front derailleur height, rotation, alignment, chain clearance, and shifting performance according to the derailleur manufacturer's instructions. Ensure that the chain does not rub excessively and that shifting remains reliable throughout the available gear range.
Do not assume that this extender will enable a larger chainring on every bicycle. Frame clearance and front derailleur capacity must also be considered.
Before You Order
If you are unsure whether this product fits your bicycle, contact PASS QUEST customer service before placing your order. Please provide your bicycle model, model year, front derailleur model, and clear photos of the mounting area.
We welcome feedback from the cycling community and continue to update our compatibility information as additional setups are verified.
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