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 162 mm Q-Factor 2x12-speed | SHIMANO BIKE-US
Shimano XT FC-M8150 Hollowtech E-MTB crank arm set ***EP801/800/600*** – recycledmoutainracing.com
Bike Upgrades. Shimano Hollowtech II Bottom Bracket and cranks Replacement - YouTube
Amazon.com : VANICE Crank Adjusting Cap Tool for Hollowtech II, Road MTB Bike Bicycle Crank arm Bolt Tool for Shimano Hollowtech II : Sports & Outdoors