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
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.
