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Model Name: STONE BB30-0mm-Offset Chainring round, narrow wide tooth
Material: Aluminum 7075T651 from Aleris USA
Color: anodize black / red
Speed: 9/10/11/12 Speed
Fit for Sram X9 X0 XX1 X1……( BB30 Crank) X!-1400 GX-1400 S-2210 S1400
Processing precision: 0.03mm
1 x bike Chainring
Weight: 30T 53g, 34T 61g, 36T 71g, 38T 80g, 40T 90g
Stone workshop new design 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.