Stone Chainring Adapter Spider for Shimano Direct Mount To 104BCD Converter 3mm 6mm Offset M6100 M7100 M7120 M8100 M8120 M9100

Stone Chainring Adapter Spider for Shimano To 104BCD Direct Mount Converter 3mm 6mm Offset M6100 M7100 M7120 M8100 M8120 M9100

Material: High strength Aluminum 7075-T651, supplied by USA company Aleris who is supplier to aircraft make Airbus, Boeing and Bombardier.

Material Hardness: HB150

Color: black,silver

Fit Crank:
M6100,M6120,M6130,M7100,M7120,M7130,M8100,M8120,M8130,M9100,M9120,M9130

Hub should be 148 boost.

104BCD

Offset: 3mm, 6mm and out offset for big size chainring

Change install direction, front side or back side, can get 3mm offset or 6mm offset by this spider.

Surface treatment: Anodize, high speed CNC

Weight: 57g

Package content:
1pcs chainring, 1pcs washer

Advantages:
1 Material: High strength Aluminum 7075-T651, supplied by USA company Aleris who is supplier to aircraft make Airbus, Boeing and Bombardier. Offer best stiffness and endurance.

2 High precision CNC processing. Working accuracy 0.03mm. Ensure offers you the best riding component.

3mm offset and 6mm offset by change direction