Stone Round Bike Chainring 130 BCD for Brompton 3sixty Shimano 5700 6700 38 40 48 52 54 56T 58T 60T 62t 64t 66t 68t 70t Road Bike Folding 130bcd

Stone Circle Bike Chainring 130 BCD for Brompton 3sixty Shimano 5700 6700 38 40 48 52 54 56T 58T 60T Road Folding 130bcd

Narrow wide tooth, it design for 1x speed only, can not use as 2x speed, not support front shifting derailleur.

Material: High strength Aluminum 7075-T651

Material Hardness:HB150

CNC process precision:0.03mm

Surface treatment: Anodize, high speed CNC

Color: black/silver

Size: 130 BCD

Thickness: 4MM

Speed: 9/10/11/12speed

Chain Speed support:

9-10-11-12 speed(MTB chain), 9-11s( for Sram Road bike chain), 9-12s(for shimano Road bike chain), Not support AXS 12s flattop chain.

(If want tooth shape for sram axs flattop chain, please send us a message to customize and pay extra surcharge)

Notice:

You have to replace the 12s shimano road bike chain original quick link to other brand 12s quick link like KMC YBN SUMC any brand. as the shimano 12s road bike chain quick link is too narrow.

Fit for: 130 bcd crank,

for Sram red

for Rotor

for Shimano 5700 6700

Only fit for 1xspeed use, not for 2x speed

Tooth size: 38T-70T

(Hollow style 38T-70T, Aero style 42-70T)

5pcs additional bolt washers for 38T.

Tooth Max diameter(mm) Weight(g) (Hollow style)

38 T , 162 mm , 49 g

40 T , 170 mm , 61 g

42 T , 178 mm , 70 g

44 T , 186 mm , 74 g

46 T , 194 mm , 79 g

48 T , 202 mm , 84 g

50 T , 210 mm , 97 g

52 T , 219 mm , 104 g

54 T , 226 mm , 111 g

56 T , 235 mm , 119 g

58 T , 242 mm , 127 g

60 T , 250 mm , 136 g

Package Contents:

1 x chainring, 5 bolts

Advantages:

1 Material: High strength Aluminum 7075-T651, . 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