PASS QUEST Shimano 110 BCD Round Narrow-Wide Chainring
Precision CNC Machining. Enhanced Chain Retention. Lightweight Strength.
The PASS QUEST Shimano 110 BCD Narrow-Wide Chainring is precision CNC-machined from high-strength 7075-T651 aluminum alloy.
Featuring an extended 8.5 mm tooth profile, a hollowed-out rear structure, and carefully chamfered details, this chainring is engineered to provide reliable chain retention and excellent structural rigidity while reducing unnecessary weight.
Key Features
1. Precision CNC-Machined Hollow Structure
Manufactured from a solid plate of 7075-T651 aluminum alloy using precision CNC machining, the chainring features an extensively hollowed-out and chamfered rear structure.
This design reduces unnecessary material while maintaining the structural strength required for reliable performance.
2. Extended 8.5 mm Narrow-Wide Tooth Profile
The extended tooth profile reaches deeper into the chain links, helping improve chain engagement and retention.
With an optimized tooth height of 8.5 mm, the chainring is designed to help reduce chain drops during rough terrain, intense vibration, and high-load pedaling.
3. Refined Matte Anodized Finish
7075 aluminum alloy presents challenges during the anodizing process.
Through multiple rounds of prototyping and surface-finishing improvements, we refined the original sandblasted anodized finish into a more refined matte anodized finish.
The result is a smoother, more sophisticated surface appearance with enhanced resistance to oxidation and everyday wear.
4. Precision Countersunk Structure
The carefully designed countersunk mounting structure provides a precise fit between the mounting bolts and chainring.
It helps create a cleaner installation appearance and reduces unwanted movement that may contribute to abnormal noise.
5. High-Strength Triangular Textured Structure
The chainring features a distinctive triangular and textured structure designed to enhance rigidity while maintaining a lightweight construction.
Precision CNC machining combines structural strength with carefully finished details, supporting efficient power transfer during demanding riding conditions.
Shimano Crankset Compatibility
Different generations of Shimano 110 BCD cranksets feature different mounting arm shapes.
Please carefully check your crankset before selecting a product option.

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FC-5800 / FC-6800: Four mounting arms without curved sections.
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FC-R7000 / FC-R8000 / FC-R9100: One curved section in the upper-right area.
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FC-R7100 / FC-R8100 / FC-R9200: Two curved sections, one in the upper-right area and one in the lower-right area.
Important: Please select the correct chainring version according to your exact Shimano crankset model. Not all Shimano 110 BCD cranksets are interchangeable.
Chain Compatibility and Drivetrain Configuration
1. 1x Drivetrain Only
This narrow-wide chainring is designed exclusively for single-chainring (1x) drivetrains.
It is not suitable for 2x double-chainring systems and is not designed for use with a front derailleur.
2. Shimano 12-Speed Chain Compatibility
When using a Shimano 12-speed chain, please replace the original Shimano quick link with a compatible KMC 12-speed quick link.
Please verify compatibility with your specific chain model before installation.
Technical Specifications
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Brand: PASS QUEST
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Mounting Standard: Shimano 110 BCD
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Shape: Round
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Tooth Profile: Narrow-Wide
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Tooth Height: 8.5 mm
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Material: 7075-T651 aluminum alloy
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Manufacturing Process: Precision CNC machining
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Structure: Hollowed-out rear design with triangular texture
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Edge Finish: Chamfered
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Surface Finish: Matte anodized
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Drivetrain Configuration: 1x single-chainring setups only
Mounting Bolts and Installation
Standard mounting bolts are provided free of charge.
Recommended Tightening Torque: 6–8 N·m
Excessive tightening torque may damage the bolts, threads, or mounting components.
Use an appropriate torque wrench and follow the crankset manufacturer's installation instructions.
Before You Order
Please confirm your exact Shimano crankset model, mounting interface, chain compatibility, and required chainring specifications before purchasing.
If you are unsure which version fits your crankset, contact PASS QUEST customer service before placing your order.
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