Stone Round Bike Chainring 130 BCD for Brompton 3sixty Shimano 5700 6700 38 40 48 52 54 56T 58T 60T 62t 64t 66t 68t 70t Road Bike Folding 130bcd

Stone Bike Chainring 130 BCD for Brompton 3sixty Shimano 5700 6700 38 40 48 52 54 56T 58T 60T Road Folding 130bcd

Upgrade your drivetrain with this high-precision Stone 130 BCD narrow-wide chainring, designed for 1x drivetrain setups only. Made from high-strength 7075-T651 aluminum alloy, it offers excellent stiffness, durability, and chain retention for road, folding, and modified bike builds.

🔧 Key Features

• Brand: Stone
• BCD: 130 BCD
• Tooth Options: 38T–70T
• Design: Narrow-wide tooth profile
• Drivetrain Compatibility: 1x speed only
• Material: High-strength Aluminum 7075-T651
• Hardness: HB150
• Thickness: 4 mm
• CNC Precision: 0.03 mm
• Surface Treatment: High-speed CNC machining + anodized finish
• Colors: Black / Silver
• Style Options:
  • Hollow Style: 38T–70T
  • Aero Style: 42T–70T

⚠️ Important Notice

This chainring is designed for 1x drivetrain systems only.

It cannot be used for 2x setups and does not support front derailleur shifting.

Please make sure your bike uses a compatible 130 BCD crankset before ordering.

🚴 Compatibility

Fits 130 BCD Cranksets, including:

• For Shimano 5700
• For Shimano 6700
• For SRAM Red
• For Rotor 130BCD crank
• For Brompton / 3Sixty modified crank setups with 130 BCD
• For Other compatible 130 BCD road or folding bike cranksets

🔗 Chain Compatibility

This chainring supports most common 9/10/11/12-speed chains.

Important for Shimano 12-Speed Road Chains

If you use a Shimano 12-speed road chain, please replace the original Shimano quick link with another brand of 12-speed quick link, such as:

• KMC
• YBN
• SUMC
• Other compatible 12-speed quick links

The original Shimano 12-speed road quick link is too narrow and may not fit properly.

For SRAM AXS Flattop Chain

This standard version does not support SRAM AXS 12-speed Flattop chains.

If you need a tooth profile compatible with SRAM AXS Flattop chain, please contact us before ordering. Customization is available with an additional surcharge.

📏 Size, Diameter & Weight Chart — Hollow Style

Note: 38T size includes 5 additional bolt washers.

📦 Package Includes

• 1 × Chainring
• 5 × Chainring bolts
• 5 × Additional bolt washers (for 38T size only)

⭐ Advantages

1. Premium 7075-T651 Aluminum

Made from high-strength 7075-T651 aluminum alloy, this chainring provides excellent stiffness, strength, and long-lasting performance.

2. High-Precision CNC Machining

Manufactured with 0.03 mm CNC processing accuracy, ensuring precise tooth shape, smooth operation, and reliable chain engagement.

3. Narrow-Wide Tooth Design

The narrow-wide tooth profile improves chain retention and helps reduce chain drop, making it ideal for 1x drivetrain setups.

4. Lightweight and Durable

Optimized structure keeps the chainring lightweight while maintaining strong riding performance.

🛠️ Production Time

Most Stone chainrings are produced after order confirmation.

Production usually takes 3–5 days before shipping. Thank you for your patience and understanding.