Chainring BCD 30-40T Narrow Chainring 9 12 32T

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Description:

Premium aluminum alloy CNC machined process bike chainring- corrosion resistance, -light but high strength
Suitable for 8,9,10,11,12 Speed; 30T/40T .
Designed to reduce friction and noise won' any burden to your bike
Longer and narrow wide increase the grasp force and make you no longer worried about the chain dropped
Use:Mountain Bikes,Road Bicycles, BMX, Folding Bike,and For single speed chains and variable speed chains.

Specification:

Material:Aluminum Alloy

Size Chart:

Size:30T 127mm/5.00inch,32T 135mm/5.31inch, 34T 144mm/5.67inch, 36T 152mm/5.98inch, 38T 161mm/6.34inch, 40T 175mm/6.89inch

Package Includes:

1 Piece Chainring

Bike Chainring Crankset;Hollow Road Chainring Crankset;12 Speed Narrow Wide Chainwheel 30-40T;Single Speed Chain Ring Repair Parts;Compact Aluminum Alloy Chainrings ;Bike Chain Ring Guide Components Accessory