Stone Chainring 3mm Offset Direct Mount Oval GXP 3-bolt 3 pins for SRAM X9 X0 XX1 X01 26T 28T 30T 32T 34T 36T 38T 40T

Stone Chainring 3mm Offset Direct Mount Oval GXP 3-bolt 3 pins for SRAM X9 X0 XX1 X01 26T 28T 30T 32T 34T 36T 38T 40T

The STONE 3-bolt Direct Mount Oval Chainring is designed for SRAM-style 3-bolt Direct Mount cranksets with 3mm offset, suitable for Boost 148mm MTB frames.

Made from aerospace-grade 7075-T651 aluminum, this chainring offers high stiffness, excellent durability, and reliable chain retention for mountain biking, racing, and high-load riding.

Available in Hollow and Aero styles, with tooth sizes from 26T to 40T.

Specifications

Important Compatibility Notice

Please check carefully before ordering.

• Compatible with standard 9 / 10 / 11 / 12-speed chains
• compatible with SRAM 3-bolt Direct Mount cranksets
• Suitable for Boost 148mm frames
• Not compatible with SRAM AXS Flattop 12/13-speed chains
• Not compatible with SRAM T-Type chains
• Not compatible with 8-bolt crank interface
• If using a for Shimano original 12-speed road bike chain, please replace the original for Shimano 12-speed quick link with another brand quick link, because the original quick link is too narrow.

Fitment

Compatible with SRAM Boost 148 cranksets, including:

• For SRAM GX
• For SRAM NX
• For SRAM XX1 / XX1 Eagle
• For SRAM X01 / X01 Eagle
• For SRAM X0
• For SRAM X9
• For SRAM X7
• For SRAM S2210
• For SRAM S1400

Also suitable for other cranksets using the same for SRAM 3-bolt Direct Mount interface.

Size & Weight Chart

Note: Due to manual measurement, slight weight variation may occur.

Hollow Style vs Aero Style

Key Features

• Oval chainring design for smoother pedaling and improved power transfer
• Narrow-Wide tooth profile for better chain retention
• Helps reduce chain drop during rough riding
• Improved self-cleaning performance in mud, soil, and dirty conditions
• CNC-machined from high-strength 7075-T651 aluminum
• Lightweight structure with excellent stiffness
• Suitable for MTB, trail riding, XC, and racing use

Advantages

1. Aerospace-Grade Material

Made from high-strength 7075-T651 aluminum, offering excellent stiffness, durability, and long service life.

2. High-Precision CNC Machining

Manufactured with 0.03mm machining accuracy for smooth chain engagement and stable riding performance.

3. Race-Ready Tooth Profile

STONE’s Narrow-Wide tooth design improves chain grip, reduces chain drop, and delivers reliable performance under high-load riding conditions.

4. Lightweight & Durable

Available in Hollow and Aero versions to meet different rider preferences for weight, appearance, and riding feel.

Package Includes

• 1 × STONE Oval Chainring
• 3 × Steel Mounting Bolts

STONE Chainrings — Race-Ready Precision

Trusted by riders worldwide and used by race teams in Europe and the USA, STONE chainrings are built for high-load riding and competitive performance.

Using aerospace-grade 7075-T651 aluminum, STONE chainrings deliver outstanding stiffness, strength, and durability, with a tested lifespan of up to 15,000 km.

High-precision CNC machining within 0.03mm tolerance ensures efficient power transfer, stable chain engagement, and reliable performance under pressure.

STONE is more than a manufacturer — we focus on tooth profile innovation, lightweight design, secure chain retention, and race-proven reliability.

Engineered for racing. Proven on the trail.

Available Options

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