Amazon.com : JGbike Crank Arm Set Mountain Bike Crankset Arm Set 170mm 104 BCD with 68 73 Bottom Bracket Kit and Chainring Bolts for MTB BMX Road Bicyle,Compatible with Shimano,SRAM,FSA, Gaint :
Amazon.com : VANICE Crank Adjusting Cap Tool for Hollowtech II, Road MTB Bike Bicycle Crank arm Bolt Tool for Shimano Hollowtech II : Sports & Outdoors
SHIMANO XTR HOLLOWTECH II MTB Crankset - 168 mm Q-Factor - 1x12-11-speed - 175 mm CYCLES ET SPORTS