Link to Buy:
Stone Chainring For 12S Shimano M9100 M8100 M7100 Oval 30T 32 34 36 38T 40T Narrow Bike Wide Direct Mount Chainwheel Bicycle Plate
Material: Aerospace Aluminum 7075-T651 from Aleris USA
Color: black, anodized
Speed: 9/10/11/12 Speed
Fit for: for shimano M9100 M8100 M7100,MT-900 Crank
Suitable for Boost 148 frame
NOTICE: 12 speed chain connector is a must if your chain is 12 speed, otherwise the 12 speed chain can not work with this chainring.
1 x bike Chainring
(Chain Connector need buy seperately)
Stone workshop new design wolf tooth narrow wide tooth, enhanced anti chain drop, enhanced self clean from soil dirty and less noise.
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.
Tooth Max diameter(mm) Weight(g)
30 T , 130 mm , 60 g
32 T , 138 mm , 66 g
34 T , 146 mm , 70 g
36 T , 154 mm , 75 g
38 T , 162 mm , 81 g
40 T , 170 mm , 88 g