H-D Detachables Sideplates

Part Number 54258-10A


Finish / Color: Gloss Black



In the time it takes for a traffic light to change, you can transform your motorcycle from a city cruiser to a cross country hauler. Forming the base for this quick change act are H-D® Detachables Sissy Bar Sideplates.

  • Gloss black finish
  • Combine with your choice of sissy bar upright and backrest pad
  • Adding or removing is a simple "slide and click"

Fits '00-'17 FLST, FLSTF, FLSTFB, FLSTFBS, FLSTN, FLSTNSE, FLSTSB, FLSTSC, FLSTSE, FXSB, FXSBSE, FXST, FXSTB, FXSTS, FXSTSSE and '06 FLSTFSE models with or without saddlebags (except Heritage Saddlebags P/N 90876-05). Requires separate purchase of Docking Hardware Kit and may require Directional Relocation Kit. See chart for your application.

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  • Model
  • Mounting Style

  • Adjustable

  • Material Content

  • Warranty

    1 year limited warranty – Go to for full details
  • Sold in Unit

  • In The Box

    Detachable sideplates and upright mounting screws
  • Sold Separately

    Docking hardware
H-D Detachables Sideplates is rated 4.0 out of 5 by 4.
Rated 5 out of 5 by from fit perfect on 2016 CVO PRO STREET BREAKOUT (FXSE) fit perfect on 2016 CVO PRO STREET BREAKOUT (FXSE)
Date published: 2017-07-16
Rated 4 out of 5 by from Love them because it's so easy to take those off I love them because I can take off my backrest very easily when working on my bike, plus I can easily exchange it with other detachable accessories.
Date published: 2017-05-18
Rated 3 out of 5 by from Hard to install and remove These sideplates look great and go well with my bike. The one problem I have with these, is that when assembled they seem to be a little difficult to install. The plates don't seem to line up as exact as I would like and therefore the installation is not as fast and easy as I would have hoped. It could be that I have assembled them wrong/crooked but i have disassembled and reassembled twice but they still have the same issue.
Date published: 2017-05-11
Rated 4 out of 5 by from Work as expected I installed without a signal relocation on my Fat Boy Lo, by just taking a quarter inch off the rear side of the latch. I may still go to a solid mount, just so I can move my bags in closer to the bike. These cause them to hang out about an inch.
Date published: 2014-08-16
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Will these plates fit my 2015 breakout the dealer had a different part number not shown on this site

I'm trying to get a sissy at and backrest for my bike
Asked by: zid9021
Hi Zid9021, Yes, these H-D Detachable Sideplates, P/N 54258-10A, will fit your 2015 FXSB. Thank you for your question.
Answered by: FXS78
Date published: 2016-02-22

Will these plates fit my 2008 night train and do i have to relocate my turn signals?

Can you also give me correct mounting bolt kit i would need? thanks
Asked by: malibumike
Hi Malibumike, Yes, these H-D Detachables Sideplates will fit your 2008 FXSTB. The Docking Hardware is P/N 53932-03A, and the Directional Relocation Kit in black is P/N 54268-10. Thank you for your question.
Answered by: FXS78
Date published: 2015-07-16

What is the thickness of the brackets at the bolt? 1/8" or 3/16'?

What is the thickness of the brackets at the bolt? 1/8" or 3/16'?
Asked by: Breakdn

will these side plates fit without moving or changing my rear signal lights?

Asked by: oneup
Hi UUNetBill. In order to install these Detachable Sideplates on your 2013 Fat Boy Lo, you will need to relocate the turn signals. There are two kits to choose from 53959-06 (chrome) or 54268-10 (black). Installation also requires Docking Hardware Kit 53932-03A.
Answered by: Wisco832
Date published: 2017-09-12
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    Prices listed are generally the Manufacturer's Suggested Retail Price (MSRP), excluding taxes and shipping. Prices at local dealerships may vary. All online orders will be fulfilled and shipped by
    Harley-Davidson Motor Company as the agent for the Selling Dealer.