Stone Round Chainring for Special 30mm spindle crank MTB bike Cycling 30T 32T 34 36 38 40T Chain Wheel Bicycle Tooth Plate BB30 0mm offset

Stone Round Chainring for Special 30mm spindle crank MTB bike Cycling 30T 32T 34 36 38 40T Chain Wheel Bicycle Tooth Plate BB30 0mm offset

0mm offset

for 30mm spindle of special crank

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Model Name: STONE BB30 Chainring round for Special crank

Material: Aluminum 7075-T651

Color: black anodized

Fit for : Special BB30 30mm crank only, other crank can not install

Thickness:4MM

Hardness:HB150

Offset: 0mm

Processing precision: 0.03mm

Tooth: 30-40T

Chain support: 9-12s chain

(But not support T-type 12s chain, send us a message to customize if need T-type tooth shape)

Size Diameter-mm Weight-g

Special-Round 30T 130 53

Special-Round 32T 138 59

Special-Round 34T 146 61

Special-Round 36T 154 71

Special-Round 38T 162 81

Special-Round 40T 170 90

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, 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.

Stone Round Chainring for Special 30mm spindle crank MTB bike Cycling 30T 32T 34 36 38 40T Chain Wheel Bicycle Tooth Plate BB30 0mm offset

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