Brake Drums With Cooling Fins For Harley Springer Forks

Because cooler drums provide better braking performance, distinctive circumferential cooling fins are featured on these brake drums for Springer forks. Fit Harley Twins 1936-1948, Servi-Car 1941-1957.  Chrome plated or black painted. At WWAG

6 Responses to “Brake Drums With Cooling Fins For Harley Springer Forks”


  1. 1 Gershom Apr 4th, 2018 at 8:27 am

    Wonder why the out the fins vertically instead of horizontal? Maybe they are just for looks?Nice to have replacement drums though.

  2. 2 Woody's Apr 4th, 2018 at 9:30 am

    cutting them like that give the maximum additional surface area, and that’s what increases cooling. Getting as much laminar flow through the grooves as possible will carry away the most heat. Since they’re right in the oncoming air when the bike is moving, and “fan effect” from radial grooves wouldn’t be a plus.

  3. 3 Lyle Landstrom Apr 4th, 2018 at 9:53 pm

    It looks as if they will actually fit unlike V-Twins which need to have the bolt boss outer diameter turned down in a lathe to fit inside the hub.

  4. 4 Architect Apr 5th, 2018 at 7:10 am

    Back in the day there was an add on accessory that added fins to the outside of the drum for the same reason. I would guess they are trying to make them look like that part. Nice piece.

  5. 5 Kelly Apr 5th, 2018 at 6:46 pm

    Architect, I have one of those on my panhead, they are rather rare, don’t know if it was a factory part or aftermarket. I have found that most people don’t know how to set up the front brake properly and say they don’t work well. They work pretty good when done right, not as good as a disc though.

  6. 6 Peter Gorman Jun 19th, 2018 at 1:24 pm

    I bought one of these, and decided not to use it because it weighs 8.8 pounds!

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