Home > All Products > Chainrings& Spiders& Power Meter > Stone Bike Oval Chainring 120BCD 36t 38T 40T 42T 44 46T 48 50T Road MTB Bike Chainwheel Tooth Plate for Sram XX X9 120 bcd

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Stone 120BCD Oval Chainring for SRAM XX X9 120BCD 36–50T

Name: Stone 120BCD Oval Chainring for SRAM XX X9 120BCD 36–50T
Brand: DJC Bikes - DJC Components
Price: 44.64 USD
Availability: InStock
Rating: 5 (1 reviews)

$44.64 ~~$62.00~~

-28%

Stone 120mm BCD Oval Chainring for SRAM XX X9 120mm BCD 36–50T.

Option examples: 36T; 38T; 40T. Match the complete option combination to your setup.

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Specifications
Warranty FAQ

Stone 120BCD Oval Chainring for SRAM XX X9 120BCD 36–50T

The STONE 120BCD Oval Chainring is designed for compatible for SRAM X9 and for SRAM XX cranksets and is intended for 1x drivetrain setups only. This chainring is not compatible with 2x drivetrains, front derailleurs, or front shifting systems.

Featuring STONE’s updated Narrow-Wide tooth profile, it helps improve chain retention, reduce chain drop, enhance self-cleaning performance in muddy conditions, and reduce drivetrain noise. Made from high-strength 7075-T651 aluminum alloy from Aleris USA, this chainring provides excellent stiffness, durability, and reliable riding performance.

Specifications

Item	Specification
Brand	STONE
Product Type	Oval Narrow-Wide Chainring
BCD	120BCD
Material	7075-T651 aluminum alloy from Aleris USA
Hardness	150HB
Thickness	4mm
CNC Precision	0.03mm
Color	Black
Surface Treatment	Anodized
Compatible Crankset	for SRAM X9 / XX, 1x setups only
Chain Speed	9 / 10 / 11 / 12-speed, not for Flattop 12/13-speed / T-Type chain
Bolts Included	Yes, 4 aluminum bolts

Key Features

Oval chainring design for smoother power delivery
Designed for 120BCD cranksets
compatible with SRAM X9 / XX
For 1x drivetrain setups only
STONE Narrow-Wide tooth profile for improved chain retention
Enhanced anti-chain-drop performance
Better self-cleaning from mud and dirt
Reduced drivetrain noise
Made from 7075-T651 aluminum alloy
CNC-machined with 0.03mm precision
Black anodized finish
Includes 4 aluminum bolts

Important Notice for 36T

The 36T oval chainring comes with washers.

When installing the 36T chainring, please use the washers together with the chainring bolts.

Compatibility

Fits compatible:

For SRAM X9 cranksets
For SRAM XX cranksets

Please check your crankset BCD and bolt pattern carefully before ordering.

This chainring is designed for 1x drivetrain setups only and is not compatible with front derailleurs or front shifting.

Chain Compatibility

Compatible with:

MTB chains: 9 / 10 / 11 / 12-speed
for SRAM road chains: 9 / 10 / 11-speed
for Shimano road chains: 9 / 10 / 11 / 12-speed

Not compatible with SRAM AXS 12-speed Flattop 12/13-speed chain by default.

If you need a tooth profile for SRAM AXS Flattop 12/13-speed chain, please contact us before ordering. Customization is available with an extra surcharge.

Important Notice for Shimano 12-Speed Road Chain

When using a for Shimano 12-speed road chain, you must replace the original for Shimano quick link with another compatible 12-speed quick link, such as:

KMC
YBN
SUMC
Other compatible brands

The original for Shimano 12-speed road quick link is too narrow and may cause chain engagement issues.

Available Oval Sizes

Oval Chainring Size, Diameter and Weight

Teeth	Max Diameter	Weight
36T	158mm	48g
38T	169mm	55g
40T	178mm	62g
42T	186mm	70g
44T	194mm	80g
46T	202mm	89g
48T	210mm	90g

Package Includes

1 × Bike Chainring
4 × Aluminum Bolts

Production Time Notice

Most STONE chainrings are made to order.

Please allow 3–5 days preparation time before shipping. Thank you for your understanding.

Stone 120BCD Oval Chainring for SRAM XX X9 120BCD 36–50T

Available Options

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

Option 1
36T
38T
40T
42T
44T
46T
48T
50T

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

Support email info@djcbikes.com

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