[STONE] Narrow-wide type Chainring for Brompton 40T 44T 48T 50T 52T 54T 56T

Product Name: STONE 110/130 BCD round Chainring, narrow and wide type
Material: High strength Aluminum 7075-T651, supplied by USA company Aleris who is supplier to aircraft make Airbus, Boeing and Bombardier.
CNC process precision:0.03mm
Color: black
Size: 110/130 BCD
Thickness: 4MM
Speed: 9/10/11/12speed
Suport both Sram and Shimano 12 speed chain
Fit for: 110/130 bcd crankset
Surface treatment: Anodize, high speed CNC
Pack quantity: 1 x chainring  and 5 pairs of steel chainring bolts


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