<p>Bike crank arm set mountain cranksets 170mm 104 BCD with bottom bracket kit and chainring bolts.</p><p></p><p>Specifications:</p><p>Material: Aluminum Alloy</p><p>BCD: 104mm / 4.09in</p><p>Crank Arm length: 170mm / 6.69in</p><p>Crank related holes distance: 74mm / 2.91in</p><p>Bottom Bracket Diameter: 23.79mm / 9.36in</p><p>Bottom Bracket Width: 68~73mm / 2.67-2.87in</p><p>Color: Black</p><p>Crank Bolt Diameter: 15mm / 5.9in</p><p>Compatible with: Single chain / Double chain</p><p>Weight: About 615g / 1.36 lbs</p><p></p><p>Package Includes:</p><p>1 x One fordged crank set</p><p>1 x Bottom Bracket</p><p>4 x Chainring bolts(set)</p><p>1 x M15 crank screw</p><p>1 x Crankset bolt Allen Wrench</p>