Stone Round Chainring for Special 30mm spindle crank MTB bike Cycling 30T 32T 34 36 38 40T Chain Wheel Bicycle Tooth Plate BB30 0mm offset for specialized crank for s-works

STONE Round Direct Mount Narrow-Wide Chainring for Special BB30 30mm Spindle MTB Crank | 0mm Offset | 30T–40T

The STONE Round Narrow-Wide Chainring is designed for Special BB30 30mm spindle MTB cranks. With a 0mm offset design and precision CNC-machined structure, it offers reliable chain engagement, smooth pedaling, and stable performance for mountain biking, XC, and trail riding.

Made from high-strength 7075-T651 aluminum, this chainring provides excellent stiffness, durability, and lightweight performance. The narrow-wide tooth profile helps improve chain retention, reduce chain drops, enhance mud-shedding performance, and lower drivetrain noise.

Specifications

Compatibility

This chainring is designed for:

• For Special BB30 30mm spindle crank only

Not Compatible With

• Not for Other crank models
• Not for T-Type 12-speed chains by default

Please confirm your crank type before ordering, as this chainring is only compatible with the specified Special BB30 30mm crank.

Chain Compatibility Notice

This chainring supports most 9–12 speed chains.

However, it does not support T-Type 12-speed chains by default.
If you need a chainring for a T-Type chain, please contact us before ordering for customized tooth profile options.

Size & Weight

Weight may vary slightly depending on production batch.

Package Includes

• 1 × Bike Chainring

Key Features

• Round narrow-wide tooth design for improved chain retention
• Helps reduce chain drops during rough riding
• Enhanced self-cleaning performance in muddy and dirty conditions
• Reduced drivetrain noise for a smoother ride
• 0mm offset design for compatible BB30 30mm spindle cranks
• CNC-machined for accurate fitment and reliable performance
• Black anodized finish for better corrosion resistance and premium appearance

Advantages

1. Premium 7075-T651 Aluminum

Made from high-strength 7075-T651 aluminum, offering excellent stiffness, strength, and endurance for demanding MTB riding.

2. High-Precision CNC Machining

Manufactured with precision CNC processing and a working accuracy of 0.03 mm, ensuring precise installation, smooth chain engagement, and dependable performance.

Important Note

This chainring is only suitable for Special BB30 30mm spindle cranks. Other crank models cannot be installed. Please check your crank model carefully before placing an order.