Stone 110bcd Round Double Chainring for Shimano 12 speed

Stone 110bcd Round Double Chainring for Shimano 12 speed

Perfect for R7100 R8100 R9200,Di2 R7170 R8170 R9270

compatible for Dura-Ace R9100, Ultegra R8000, 105 R7000, R9000, Tiagra 4700, FC 5800 6800

most 110bcd 4 bolts power meter spider like sigeyi xcadey magene works.

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

Color: black,50-34T has multicolor now

Notice:Only 50-34T has multicolor now,the outer chainring is colored and the inner chainring is black.


Size:110bcd 4 arms
Advantage: fast chain shifting


Weight:
46-32T 132g
48-33T 153g
50-34T 155g
52-36T 184g
53-39T 195g
54-40T 199g
55-40T 199g
56-42T 209g


Speed: 9-12s(Road bike)
Not support axs flattop 12s chain. other brand 12s chain works, like KMC YBN SUMC.

Offset:0mm, except 46-32T is 2mm inner offset

Notice:the Bolts covers set only for stone 2X chainring use. (46T/32T can not use)

Package content:
2 chainrings and 4pcs ordinary aluminum bolts