kbxstart mountain bike arm crankset aluminum bike crank arm set 170mm 104 bcd without bottom bracket kit and chainring bolts for mtb bmx road bicyle, compatible with shimano, fsa (1 pair) (black) kbxstart <p>☞product description</p><p>☞crank: 170mm</p><p>☞material: al6061 aluminum alloy</p><p>☞compatible: single/triple chainring; 7/8/9/10s chainring</p><p>☞specifications: bcd: 104mm ,related holes distance: 74mm</p><p>☞weight: about 637g</p><p>☞color: black, red,blue ,gold ,silver,green,purple</p><p>☞advantages: the use of al6061 aluminum alloy, light weight, appearance and fashion, very cool, axial strength, strong compatibility</p><p>☞attention:</p><p>☞1.please allow 1-3 cm error due to manual measurement (1 inch = 2.54 cm);</p><p>☞2.item color displayed in photos may be showing slightly different on your computer monitor since monitors.thank for your understanding. </p><p>☞3.we did a very careful inspection of the products before shipment to ensure that each product was intact, and strictly packed when shipped, but it was inevitable that there would be collisions during transportation, which would cause some small defects (such as the color will be missing a small piece by collision), but it does not affect the use</p><p>☞please carefully make sure you don't mind these matter before you order, thank you.</p><p>☞package includes:</p><p>☞1 x one fordged crank set</p><p>☞4 x chainring bolts(set)</p><p>☞1 x m15 crank screw</p><p>☞1 x crankset bolt allen wrench</p>