165mm Mountain Bike Crankset 144BCD Square Hole Crank Chainwheel 49T Crank Set

  

Bicycle Crankset 144BCD Mountain Bike Square Hole Crank Aluminum Alloy Single Speed Crank Chainwheel 165mm 49T Crank Set. Material: tooth plate /AL7075, crank /G609 aluminum. Tooth number: 49T or 48T(If you need 48T, please contact me). 5 applicable shaft: suitable for 113.5-118mm shaft (specifically to see the frame model) general frame made concave processing or arc, it is better to use 113.5 shaft, the chain is straighter, if there is no concave that needs 118 shaft. Manufacturing process: tooth disk /CNC finishing, crank /3D high density forging integrated forming.

Surface treatment: tooth plate/fine sandblasting anode, crank/fine polishing anode.