Installation of a Harley Davidson Derby Cover

Written by chris gilliland Google
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Installation of a Harley Davidson Derby Cover
Replacing the round derby cover can lend a custom appearance to your motorcycle. (trittbrett einer Harley image by Thomas Duchauffour from

Harley-Davidson's motorcycles are an outlet for self-expression, allowing the machine's owner to personalise almost every facet and component to their taste. Even components as common as the clutch inspection cover, better known as the Derby cover, can be replaced with a custom piece to reflect the owner's personality. Installing a new Derby cover is a simple task that requires only a few tools. However, it is recommended that you use a stand to hold your motorcycle upright, in order to prevent fluid from leaking out of the primary while installing the new Derby cover.

Skill level:

Things you need

  • Motorcycle stand or lift
  • Torx drivers
  • Derby cover
  • Derby cover gasket
  • Rags or towels

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  1. 1

    Place the motorcycle into an upright position using a motorcycle stand or lift for support.

  2. 2

    Use a Torx-27 driver to unscrew all five bolts that secure the original derby cover to the primary housing on the right side of the motor. Set the bolts aside. Pull the derby cover and its gasket off the primary housing.

  3. 3

    Using a clean rag or towel, remove any oil from the derby cover gasket's mating surface on the primary housing.

  4. 4

    Prepare the new derby cover and derby cover gasket. Flip the gasket so that the side with the words "Towards clutch" imprinted on it faces the primary housing. Align the triangular hole on the gasket with the top hole of the derby cover and place both pieces against the primary housing.

  5. 5

    Insert a bolt and washer into the top hole on the derby cover to secure the cover against the primary housing, screwing it in slightly with a Torx-27 driver. Insert bolts and washers into the remaining holes on the derby cover.

  6. 6

    Use a torque wrench to tighten the bolts to 84 to 108 inch-pounds, following a 5-pointed star pattern starting from the top centre bolt, bottom left bolt, top right bolt, top left bolt, then the bottom right bolt.

  7. 7

    Wipe away any spilt primary fluid or fingerprints from the primary housing and derby cover with a clean rag or towel. Lower the motorcycle from the stand or lift and place it onto its kickstand.

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