Home > All Products > Chainrings& Spiders& Power Meter > Stone 5mm Offset Bike Chainring for E THIRTEEN E13 RG1 TRS XCX GRAVEL CARBON Crank Narrow Wide Direct Mount 9-12S 30T-40T

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STONE Direct Mount Narrow-Wide Chainring 30-40T for E*Thirteen E13 LG1 TRS XCX Race Cranks, 5mm Offset

Name: STONE Direct Mount Narrow-Wide Chainring 30-40T for E*Thirteen E13 LG1 TRS XCX Race Cranks, 5mm Offset
Brand: DJC Bikes - DJC Components
Price: 56.16 USD
Availability: InStock
Rating: 5 (1 reviews)

$56.16 ~~$78.00~~

-28%

STONE Direct Mount Narrow-Wide chainring, 30-40T, for E*Thirteen/E13 LG1 Race, TRS Race, XCX Race Mountain and XCX Race Gravel carbon cranks.

The 5mm offset matches the UL-5mm version for compatible Boost frames; it is different from the CL-8mm version.

For standard 9-12-speed chains. Select the listed tooth count and confirm crank interface and frame clearance.

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Specifications
Warranty FAQ

STONE Direct Mount Narrow-Wide Chainring 30-40T for E*Thirteen E13 LG1 TRS XCX Race Cranks, 5mm Offset

STONE 5mm Offset Direct Mount Chainring for E*Thirteen / E13 LG1 Race TRS Race XCX Race MTB & Gravel Carbon Cranks — Narrow-Wide 9–12-speed 30T–40T

The STONE 5mm Offset Direct Mount Chainring is designed for E*Thirteen / E13 carbon cranksets, including LG1 Race, TRS Race, XCX Race Mountain, and XCX Race Gravel models.

This chainring uses the same offset as the original E13 UL-5mm chainring, making it suitable for Boost specification frames. Made from high-strength 7075-T651 aluminum, it provides excellent stiffness, durability, and reliable chain retention for MTB, gravel, and off-road riding.

The original E13 chainring has two specifications, one is UL-5mm offset, one is CL-8mm offset. Stone chainring is 5mm offset,can fit for boost spec frames.

Specifications

Item	Details
Brand	STONE
Material	High-strength Aluminum 7075-T651
Material Hardness	HB150
Color	Black anodized
Mount Type	Direct Mount
Offset	5mm
Thickness	9mm
Speed Compatibility	9 / 10 / 11 / 12-speed chains
Crank Compatibility	For E*Thirteen / E13 LG1 Race Carbon, TRS Race Carbon, XCX Race Mountain Carbon, XCX Race Gravel Carbon
Surface Treatment	Anodized, high-speed CNC finish
CNC Precision	0.03mm
Tooth Options	30T / 32T / 34T / 36T / 38T / 40T
Key Feature	Material: High-strength Aluminum 7075-T651
Compatibility	Speed Compatibility: 9 / 10 / 11 / 12-speed chains Crank Compatibility: For E*Thirteen / E13 LG1 Race Carbon, TRS Race Carbon, XCX Race Mountain Carbon, XCX Race Gravel Carbon

Compatibility

This chainring is compatible with the following E*Thirteen / E13 cranksets:

For LG1 Race Carbon Cranks
For TRS Race Carbon Cranks
For XCX Race Mountain Carbon Cranks
For XCX Race Gravel Carbon Cranks

It is designed as a replacement for the original E13 UL-5mm offset chainring.

Important Notice

The original E13 chainring has two offset specifications:

Original E13 Version	Offset	Compatibility Note
UL Version	5mm offset	Compatible with this STONE chainring
CL Version	8mm offset	Not the same offset as this chainring

This STONE chainring is 5mm offset and is suitable for Boost spec frames. Please confirm your original chainring offset before ordering.

Size & Weight

Teeth	Max Diameter	Weight
30T	130mm	63g
32T	138mm	68g
34T	146mm	71g
36T	154mm	75g
38T	162mm	79g
40T	170mm	85g

Weight may vary slightly due to manufacturing tolerances.

Product Advantages

1. High-Strength 7075-T651 Aluminum

Made from 7075-T651 high-strength aluminum, this chainring offers excellent mechanical performance for demanding riding conditions.

High stiffness
Strong durability
Lightweight structure
Good wear resistance
Reliable long-term performance

2. Precision CNC Machining

Each chainring is produced using high-speed CNC machining with a working accuracy of 0.03mm.

This ensures:

Accurate crank fitment
Smooth chain engagement
Stable drivetrain performance
Consistent riding quality

3. Narrow-Wide Tooth Design

The Narrow-Wide tooth profile helps improve chain retention and reduce the chance of chain drop during rough riding.

It also supports smoother chain engagement and better drivetrain stability.

Package Includes

1 × STONE Direct Mount Chainring

STONE Direct Mount Narrow-Wide Chainring 30-40T for E*Thirteen E13 LG1 TRS XCX Race Cranks, 5mm Offset

Available Options

Each row below is one available option combination. Choose the complete combination that matches your setup.

Option 1
30T
32T
34T
36T
38T
40T

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.

5 How can I know the tracking number?
We will send the tracking code to your email automatically after we send the package. check the track update here https://www.17track.net/en

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