Material: Aluminum 7075-T651, from Aleris USA
Color: black /red anodized
Size: 104BCD hollow model, 104BCD aero model
Fit for : for Shimano M590/610/615/670/675/770/785/780/970/980/820/430
for SRAM Most 30s Crank X0/X5/X7/X9,IXF
Thickness:4MM
Speed: 9/10/ 11 /12speed,1x speed
(not support t-type 12s chain, please send us message if want to customize t-type tooth shape)
Hardness: 150HB
Process pricision: 0.03mm
Package Contents:
1 x bike Chainring, 4 bolts
Tooth Max diameter(mm) Weight(g)
32 T , 138 mm , 39 g
34 T , 146 mm , 51 g
36 T , 154 mm , 57 g
38 T , 162 mm , 61 g
40 T , 170 mm , 71 g
42 T , 178 mm , 77 g
44 T , 186 mm , 86 g
46 T , 194 mm , 102 g
48 T , 202 mm , 108 g
50 T , 210 mm , 119 g
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.
Most Stone chainrings produce by order, it need several days to produce. Hope you would understand 3-5days prepare time.
