Stone Chainring Adapter Spider for Shimano Direct Mount to 104BCD 3mm 6mm Offset for M6100 M7100 M8100 M9100 MTB Crankset

Stone Chainring Adapter Spider for Shimano Direct Mount to 104BCD 3mm 6mm Offset for M6100 M7100 M8100 M9100 MTB Crankset

Fit for Shimano direct mount crankset.
Covert to 104BCD
Can get inner 3mm/6mm offset and negative offset

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This chainring adapter spider is designed for Shimano Direct Mount MTB cranksets.

It converts Shimano direct mount cranks to 104BCD chainring compatibility, allowing riders to use 104BCD MTB chainrings.

Supports 3mm and 6mm offset installation for different chainline and frame clearance needs.

Compatibility

Fit for Shimano MTB cranksets:

M6100 / M6120 / M6130
M7100 / M7120 / M7130
M8100 / M8120 / M8130
M9100 / M9120 / M9130

Compatible with 104BCD MTB chainrings.

Offset Design

Offset options: 3mm / 6mm / negative (install outward)

Install the lock ring on one side to get 3mm offset.
Install it on the other side to get 6mm offset.

For larger chainrings, the adapter can be installed outward to help improve frame clearance.

Specifications

Brand: Stone
Product Type: Chainring Adapter Spider / Converter
Crank Interface: Shimano Direct Mount
Chainring BCD: 104BCD
Offset: 3mm / 6mm
Material: 7075-T651 Aluminum Alloy
Material Hardness: HB150
Color: Black / Silver
Surface Treatment: Anodized
Machining: High-Speed CNC
Weight: approx. 57g

Package Includes

1 × Chainring Adapter Spider
1 × Washer

Advantages

1. High-Strength Aluminum
Made from 7075-T651 aluminum alloy, offering excellent stiffness, strength, and long service life.

2. Precision CNC Machining
High-precision CNC machining with working accuracy up to 0.03mm ensures accurate fitment and stable riding performance.

3. 104BCD Conversion
Converts Shimano direct mount cranksets to 104BCD, giving riders more chainring options.

4. Adjustable Offset
Supports 3mm and 6mm offset installation for different chainline and clearance needs.

Installation Notice

Please check your crank model, chainring BCD, offset requirement, and frame clearance before purchase.

This adapter is only for compatible Shimano Direct Mount MTB cranksets and 104BCD chainrings.

Professional installation is recommended.

Stone Chainring Adapter Spider for Shimano Direct Mount to 104BCD 3mm 6mm Offset for M6100 M7100 M8100 M9100 MTB Crankset

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