Home > Brand > Stone chainring Brand > Stone Round Chainring For Rotor 30mm REX 1.1 REX 2.1. 3D+ XC2 3DF XC2 5mm Offset 30T 32 34 36 38T MTB Bike Chainwheel DM

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Stone Round Chainring For Rotor 30mm REX 1.1 REX 2.1. 3D+ XC2 3DF XC2 5mm Offset 30T 32 34 36 38T MTB Bike Chainwheel DM

Name: Stone Round Chainring For Rotor 30mm REX 1.1 REX 2.1. 3D+ XC2 3DF XC2 5mm Offset 30T 32 34 36 38T MTB Bike Chainwheel DM
Brand: DJC Bikes - DJC Components
SKU: Rotor30-Y-rotor30 spider tool
Price: 36 USD
Availability: InStock
Rating: 5 (3 reviews)

SKU: Rotor30-Y-rotor30 spider tool

$36.00 ~~$50.00~~

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Specifications
Warranty FAQ

STONE Round Direct Mount Narrow Wide Chainring for Rotor Crank REX1.1 / REX2.1

Upgrade your drivetrain with the STONE narrow-wide chainring, designed for stable chain retention, smooth pedaling, and reliable performance on demanding rides. Made from high-strength 7075-T651 aerospace-grade aluminum, this chainring offers excellent stiffness, durability, and long-lasting performance.

The newly designed wolf-tooth narrow-wide profile helps reduce chain drops, improves mud-shedding ability, and minimizes drivetrain noise, making it ideal for MTB, XC, and trail riding.

Specifications

Item	Details
Material	Aerospace Aluminum 7075-T651
Color	Black, Anodized
Offset	5 mm
Speed Compatibility	9 / 10 / 11 / 12 Speed（Not for AXS flattop chain）
Thickness	9 mm
Hardness	HB150
Machining	High-Precision CNC Machining
Machining Accuracy	0.03 mm

Compatibility

Fits

For Rotor Crank REX1.1
For Rotor Crank REX2.1
For Rotor 3D+ XC2
For Rotor 3DF XC2

Not Compatible With

Not for Rotor R-Hawk
Not for Rotor R-Raptor

Package Includes

1 × Bike Chainring

Key Features

New STONE wolf-tooth narrow-wide design for improved chain retention
Helps prevent chain drops during rough riding
Enhanced self-cleaning performance in muddy or dirty conditions
Reduced drivetrain noise for a smoother riding experience
Made from high-strength aerospace-grade aluminum
Black anodized finish for better corrosion resistance and a premium look
CNC-machined for precise fit and reliable performance

Advantages

1. High-Strength 7075-T651 Aluminum

Made from premium 7075-T651 aerospace aluminum, this chainring provides excellent stiffness, strength, and endurance for demanding cycling conditions.

2. Precision CNC Processing

Manufactured with high-precision CNC machining and a working accuracy of 0.03 mm, ensuring accurate fitment, smooth chain engagement, and dependable performance.

Production Time Notice

Most STONE chainrings are made to order. Please allow 3–5 days for production preparation before shipment. Thank you for your understanding.

All Taxes & Duties Included • Fast Delivery (8–12 Days) • No Hidden Fees • 6-Month Warranty

1 How long is the warranty?
We offer 6 months limited warranty to all products because of the quality defects. We offer lifetime payable repair service after the warranty.

2 Do need to pay tax duty when package arrive my country?
You no need to pay tax when package arrive your country, most countries in the world no need pay.
USA aslo no need tax duty and tariff, our carrier will cover it.

Brazil, Chile, Columbia clients need pay import duty when package arrive your country.

3 Can I return the goods if I am not like it?
Yes you can apply return and refund when you receive the product within 7 days. But as return shipping fee is relatively high when send back to China, so we suggest you consider and carefully before purchase.

Or you can send message to us and discuss technical issues to clarify if the products is what you need, and then pay after you sure your order is correct.

4 How long is the shipping time?
To most countries 7-15days can arrive your address. Pay extra 20USD if want ship by Fedex DHL UPS.

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