Stone Round Bike Chainring for White Industries industry R30 Crank 40T To 56T Cycling Bike Chainwheel for Road Bike for Brompton Folding Bike

Stone Round Bike Chainring for White Industries industry R30 Crank 40T To 56T Cycling Bike Chainwheel for Road Bike for Brompton Folding Bike

Material:Aerospace high stiffness Aluminum 7075-T651

Color: black /silver

Narrow wide tooth for 1x speed.

Speed: 9/10/11/12 speed

Default not support axs flattop and t-type 12s chain. Send us message if want customize axs t-type tooth shape.

Fit :for White Industries R30 Crank only

Not for other crank. The white industry square tapered crank can not install, as the interface shape different.

Thickness:4MM
Hardness:HB150

Processing precision: 0.03mm
Tooth: 40-56T

Please change to KMC or YBN or SUMC 12s chain quick link if you use shimano 12s chain. As the orginal 12s chain is too narrow.

Chainline is good for road bike and gravel bike, not for MTB.

Tooth Max diameter(mm)
40 T , 169 mm
42 T , 178 mm
44 T , 186 mm
46 T , 194 mm
48 T , 202 mm
50 T , 210 mm
52 T , 219mm
54 T , 226 mm, 142g
56 T , 235 mm, 151g

Package Contents:
1 x bike Chainring

Features:
Stone workshop new design narrow wide tooth, enhanced anti chain drop, enhanced self clean from soil dirty and less noise.

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.