Harley-Davidson DETACHABLE ADJUSTABLE SIDEPLATES – CHROME 53994-11

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Enhance your passenger’s ride with an adjustable passenger backrest. When combined with your choice of Sissy Bar Upright and Backrest Pad, these Premium adjustable sideplates allow the passenger to change the recline angle of the passenger backrest for maximum comfort.

Chrome finish

Pull on the release levers and adjust upright to one of three different recline settings

Adjustable passenger backrest can be equipped with choice of luggage racks

Cam lock detachable design lets you add or remove the passenger backrest assembly in seconds

Requires separate purchase of Docking Hardware Kit

Fits ’00-later FXSB, FXST, FXSTB, FXSTS, FXSBSE, FXSTSSE/2/3, FLSTFSE2, FLST, FLSTF, FLSTFB, FLSTSB, FLSTSC, FLSTN and FLSTNSE 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. DETACHABLE ADJUSTABLE SIDEPLATES

DETACHABLE ADJUSTABLE SIDEPLATES

The Harley‑Davidson DETACHABLE ADJUSTABLE SIDEPLATES – CHROME 53994‑11 are premium motorcycle accessories engineered to give riders versatile two‑up riding options while preserving a clean, custom look when you prefer solo cruising. These sideplates serve as the mounting bases for a detachable passenger backrest and sissy bar upright while offering adjustability and easy removal when the backrest is not needed.(Harley Davidson Siebla) DETACHABLE ADJUSTABLE SIDEPLATES

What They Are & Why They Matter

In simple terms, adjustable sideplates are metal mounting plates that attach to your motorcycle’s rear fender struts or frame. On the 53994‑11 variant, they are finished in chrome, which adds a classic, polished look that complements other chrome accessories on your Harley. These plates are designed to work with Harley‑Davidson’s detachable backrest systems so a passenger backrest can be added or removed in seconds.(Harley Davidson Siebla)

Most riders use them with a sissy bar upright and backrest pad (each sold separately), giving passengers better support and comfort on longer rides. What makes this particular sideplate option “adjustable” is the ability to change the recline angle of the passenger backrest, so you can fine‑tune the seating angle to suit passenger comfort preferences.(Harley Davidson Siebla) DETACHABLE ADJUSTABLE SIDEPLATES

Design & Finish

The chrome finish of these adjustable sideplates not only brings a gleaming accent to your motorcycle but also resists corrosion and compliments Harley‑Davidson’s traditional chrome styling. Chrome parts pair well with classic cruisers and custom builds alike and help maintain a cohesive visual theme across chrome handlebars, exhaust, engine covers, and other trim pieces.(Harley Davidson Siebla)

Constructed from strong, steel‑based materials, the sideplates are capable of supporting the weight of passenger seating elements and the forces generated during acceleration, braking, and cornering. The adjustable design typically incorporates cam‑lock or similar release levers that let you pull the release and reposition the upright to different recline settings—commonly up to three positions—enhancing passenger comfort.(Harley Davidson Siebla) DETACHABLE ADJUSTABLE SIDEPLATES

Ease of Use – Slide, Click, Ride

One of the most compelling benefits of the 53994‑11 sideplates is their user‑friendly design. Instead of requiring tools or a full teardown to switch between solo and two‑up configurations, the system uses a quick‑attach mechanism: you slide the backrest assembly into place on the sideplates and it locks with a click. Removing the backrest is equally straightforward, offering riders on‑the‑fly flexibility—transforming the bike from a two‑up cruiser to a sleek solo ride in moments.(Harley Davidson Siebla)

This approach makes the accessory ideal for riders who enjoy mixed riding styles—solo during daily rides or urban trips and with a passenger on weekend tours or longer journeys. Instead of permanently committing to a bulky sissy bar assembly, you get all the functionality only when you want it.(Harley Davidson Siebla) DETACHABLE ADJUSTABLE SIDEPLATES

Compatibility Notes

Because the sideplates are part of a modular system, installation requires a compatible Docking Hardware Kit specific to your Harley‑Davidson model. Harley‑Davidson’s accessories are engineered around a docking hardware matrix, so the correct docking kit ensures proper fitment and safety. Without proper docking hardware, the backrest system can’t securely attach.(Harley-Davidson)

Fitment varies based on motorcycle model and year. Historically, similar detachable sideplates have fit many Sportster®, Dyna®, and Softail® models, often from the early 2000s onward, but always check fitment for your specific bike before purchase.(Harley Davidson Siebla) DETACHABLE ADJUSTABLE SIDEPLATES

Summary

The Harley‑Davidson DETACHABLE ADJUSTABLE SIDEPLATES – CHROME 53994‑11 are high‑quality, stylish accessories that expand your motorcycle’s versatility. With a polished chrome finish, strength to support sissy bar/backrest assemblies, adjustable recline settings, and easy slide‑and‑click install/remove convenience, they’re perfect for riders who want comfortable two‑up riding on demand without compromising solo aesthetics.(Harley Davidson Siebla) DETACHABLE ADJUSTABLE SIDEPLATES