In this article I will review the Kogel Bearings Shimano Crank Arm Fixing Bolt, or as Shimano calls it the crank arm cap or pre-load cap. Default Shimano uses plastic versions of this component Y0N500025. For the Dura Ace 9000 cranks I’ve exchanged it with a grey anodized Wheelsmfg FIX-BOLT-1 from 6061 aluminum. The Kogel Bearings Crank Arm Fixing Bolt will go on the Deore XT M8100 Hollowtech II crank arm (with 4iiii power meter).
Hollowtech II
Wheelsmfg FIX-BOLT-1 for Shimano Dura Ace 9000
Sometimes small details on your road bike make a big difference. The Wheelsmfg FIX-BOLT-1 replaces the black plastic crank arm fixing bolt for Shimano Dura Ace 9000 with a grey anodized 6061 aluminium version. The Wheels Manufacturing crank fixing bolt is compatible with other Shimano HollowTech II crank-sets as well.
In this article I will briefly look at the design and compare it with the original Shimano crank fixing bolt.