This left hand crank arm is black in color, measures 170mm in length and is for use with 11-speed double chain sets. Crank arms can start to make creaking and grinding sounds when in need of a repair. This noise can happen when the mating hole for the bottom bracket is damaged. For this repair you will need a hex wrench for the pinch bolts, flat screwdriver to lift the stop plate, a mallet for installing the arm, and a torque wrench for tightening the pinch bolts. You may also require lubrication for the spindles and the end cap. You will first need to remove the crank arm by removing the pinch bolts, removing the cap, and pulling the arm off the spindle. To install the new crank arm, start by greasing the surfaces of the spindle where it connects with the bearings. Install the spindle through the right side of the bearings and out the left. Install the left arm 180 degrees from the right arm. Push the stop plate down over the pinch bolt and ensure that it is fully engaged into the spindle. Grease the crank cap and thread into the spindle. Tighten the cap in carefully. It is very important not to over-tighten. Tighten to the recommended manufacturer's torque, which is often specified on the crank arm. Tighten one side until it clicks, and then do the same for the opposite side. If the adjustment is too loose, you will notice a side-to-side motion of the spindle on the bearings.
Left Hand Crank Arm Unit 170 M Y1WV98090
OEM part for: Shimano Bicycles
Part Number: Y1WV98090
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Compatibility
This part will fit the following 2 machines
Shimano Bicycles
This item works with the following types of products:
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