PASS QUEST ROTOR ALDHU / INpower Direct-Mount Hollow Narrow-Wide Chainring
Precision CNC Engineering. Enhanced Chain Retention. Lightweight Strength.
The PASS QUEST ROTOR Direct-Mount Narrow-Wide Chainring is precision CNC-machined from high-strength 7075-T651 aerospace-grade aluminum alloy.
Featuring an extended 8.5 mm tooth profile, an optimized hollowed-out rear structure, and carefully chamfered details, this chainring is engineered to provide reliable chain retention and excellent structural rigidity while minimizing unnecessary weight.
Designed for compatible ROTOR direct-mount cranksets, it combines lightweight construction with a refined appearance and dependable performance.
1. Precision CNC-Machined Construction
Manufactured from a solid aluminum plate using precision CNC machining, the chainring features an optimized hollowed-out rear structure.
The backside is carefully machined with hollow sections and chamfered details to reduce unnecessary material while maintaining structural strength and rigidity.
2. Extended 8.5 mm Narrow-Wide Tooth Profile
Featuring an extended tooth profile with an optimized height of 8.5 mm, this chainring is designed to improve chain engagement and retention.
The extended teeth reach deeper into the chain links, helping maintain secure chain contact and reduce the risk of chain drops during rough terrain, intense vibration, and demanding riding conditions.
3. High-Strength 7075-T651 Aerospace-Grade Aluminum Alloy
Precision-machined from high-strength 7075-T651 aerospace-grade aluminum alloy, this chainring offers an excellent balance of strength, rigidity, and durability.
The surface undergoes an anodizing process to improve corrosion resistance and protect the aluminum against oxidation and everyday wear.
4. Lightweight Hollowed-Out and Chamfered Design
The rear structure features extensive hollowing and carefully machined chamfers to reduce unnecessary material while maintaining structural integrity.
The carefully finished edges and corners create a clean, three-dimensional appearance while contributing to the chainring's lightweight construction.
5. Chainring Offset and Design Options
This product features a 6 mm offset hollow design.
We also offer additional configurations to suit different crankset and chainline requirements:
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6 mm Offset: Hollow design.
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3 mm Offset: Hollow design.
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Closed Design: An alternative construction option.
Please select the appropriate version according to your crankset, frame configuration, chainline, and clearance requirements.
Need Help Choosing the Right Offset?
If you are planning to install a larger chainring or are unsure which offset is suitable for your setup, please contact PASS QUEST customer service before ordering.
We can guide you through the measurement process and help determine the appropriate offset and maximum chainring size your frame can accommodate.
Important: Do not select an offset based solely on rear hub spacing. Please confirm your exact crankset model, chainline, and frame clearance before purchasing.
6. Installation Instructions
Two small positioning marks on the back of the chainring indicate the crank-facing side.
During installation:
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Locate the two small positioning marks on the back of the chainring.
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Position the marked side toward the crank.
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Rotate the chainring into the correct mounting position.
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Secure the chainring according to the crankset manufacturer's installation instructions.
7. Required Installation Tool
Installation requires a dedicated removal tool compatible with ROTOR direct-mount cranksets.
To find the compatible tool in our store, search for:
PASS QUEST Shimano ROTOR Colnago FSA Cannondale Direct Mount Chainring Tool
Please make sure you have the correct removal tool before installation.
Technical Specifications
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Brand: PASS QUEST
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Compatible Mounting System: ROTOR Direct Mount (compatible models only)
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Compatible Crankset Series: ROTOR ALDHU / INpower (subject to interface compatibility)
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Product Type: Round Narrow-Wide Chainring
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Material: 7075-T651 Aerospace-Grade Aluminum Alloy
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Manufacturing Process: Precision CNC Machining
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Tooth Profile: Narrow-Wide
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Tooth Height: 8.5 mm
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Structure: Hollowed-Out Design
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Edge Finish: Chamfered
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Surface Finish: Anodized
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Available Offsets: 3 mm / 6 mm
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Available Designs: Hollow / Closed
Before You Order
Please confirm the following specifications:
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Exact ROTOR crankset model
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Direct-mount interface compatibility
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Required chainring offset
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Hollow or closed design
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Chainring tooth count
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Frame and chainstay clearance
If you are unsure about compatibility or installation, contact PASS QUEST customer service before placing your order.
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