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GoHawk - Bluetooth Motorcycle Speakers: 8-Speaker Waterproof Aluminum Stereo Soundbar w/ 4" External Speakers, FM/USB Music/LED - Black

Model: RD88-S42 Black
SKU: 11979200
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GoHawk

About this product

The GoHawk RD88-S42 Supreme 8-Speaker Motorcycle Sound System delivers powerful 600W peak performance through its RD88-Supreme soundbar featuring six high-output speakers (including silk tweeters, woofers, and passive radiators) paired with two 4.25" external speakers, offering crisp stereo separation, distortion-free mids, and deep bass. Built with Bluetooth 5.0, FM radio, USB support, and AUX-in, this satin black system is designed for Harley-Davidson motorcycles, ATVs, scooters, and outdoor adventures, combining durability, style, and immersive sound in one package.

Features
  • Speaker Configuration & Power

    Motorcycle Speakers: Supreme 8-Speaker Sound System (RD88-S42). Includes RD88-Supreme soundbar with 6 high-output speakers (4x1" silk tweeters, 2x3" woofers, 2x1.6" passive radiators) plus two 4.25" external speakers for 600W peak power. Delivers crisp stereo separation, distortion-free mids, and thunderous bass—ideal for Harley-Davidson, ATVs, scooters, and outdoor adventures.

  • Bluetooth Connectivity & Streaming

    First and Only Complete Motorcycle Soundbar System: GoHawk-exclusive bundle—no need to upgrade later. The RD88-S42 combines the 6-speaker soundbar with two external speakers for instant 8-speaker audio, an ultimate-level experience on any terrain.

  • Audio Inputs & Radio Features

    Bronze Supreme Logo + Modern LED Design: Features a machined bronze aluminum logo, paired with dynamic blue/white LED lighting (breathing or static modes). Combines classic craftsmanship with modern flair, enhancing your bike’s rugged aesthetics day or night.

  • Weatherproof Design & Durability

    Rugged IP56 Waterproof Build: Built for all-weather durability with the soundbar’s full aluminum matte-black housing and IP56 waterproof rating. External speakers are adventure-ready to resist rain, mud, and vibrations. Compact 10.5" L x 3" diameter soundbar fits 7/8”–1.25” handlebars with adjustable horizontal/vertical mounting.

  • Installation & Compatibility

    LCD Display with Wired Remote Control: Track FM radio stations, volume, or modes on the bright LCD screen. Includes a backlit wired remote for easy, distraction-free adjustments to your 8-speaker stereo system while riding.

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Specifications
  • RMS Power
    140 watts
    Peak Power Handling
    600 watts
    Minimum Frequency Response
    20 hertz
    Maximum Frequency Response
    20 kilohertz
    Sensitivity
    98 decibels
    Speaker Size
    10"
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Reviews

Rating 4.5 out of 5 stars with 2 reviews

5 star rating. 1 review4 star rating. 1 review
100% would recommend to a friend

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 4 out of 5 stars

    I took the risk, so you don’t have to.

    I’m going to try to be completely honest here. I actually bought this for myself, so no one is paying me for this review. Aesthetics 3/5 The soundbar itself looks and feels good. It doesn’t feel cheap, it looks pretty clean on the bike. The satellite speakers on the other hand feel and look cheaper. They’re also relative large. They were definitely not developed together as their lines don’t flow very well. It was hard to find enough space on my handlebars to install everything. So I installed the satellites on my forward crash bars, because I needed my phone mount and cup holder on the bars. I may reposition these later if I find a better spot, I would assume it would sound louder if the satellites were up higher. Installation 4/5 So, I’m not averse to using tools, my experience is mostly construction, but I have basic auto mechanic skills. I wanted a clean install on my Harley Road King so I had to disassemble the headlight assembly, remove the tank, and access the wiring channel. This was not difficult if you know what you are doing. There are YouTube videos out there as well to get to these. There are currently no installation videos for this system on YouTube that goes into detail, so I wouldn’t recommend self installation if you are not confident. Get a professional. However, if you do have some skills, this was a piece of cake. As a first timer, took me 3 hours, but I believe if you know what you are doing, this might take an hour. I will say the most challenging thing for me was getting a good fit for the handlebar mounts using the rubber inserts they included. Screw threads were not deburred very well and I felt like all of the screws were very hard to turn. Make sure you use longer Allen wrenches as the included ones are too small and hard to turn in the right places around your bike. Important note: make sure everything is plugged in well. I didn’t plug the wired remote in all the way (it clicks) and I didn’t function check and ended up having to open it all up again. Performance 3.5/5 Now full transparency. I usually use my Cardo and helmet speakers. I merely wanted this as an option to listen to music without a helmet or when my bike is on the driveway. It is pretty loud. Especially with all 8 speakers firing. It sounds clear. However, I do feel it wasn’t as bass-y as I like. My JBL Charge 5 has more LFE. But set your expectations, there’s no subwoofer. Now my RKC has some loud pipes. I will say that it gets difficult to hear over the pipes. So if you are someone who has a very loud bike, this may drown out at highway speeds. But I will say, when I had an Electra glide, the factory radio could also drown out. At the end of the day, it’s physics. Sound in an outdoor space with wind noise, traffic, etc. Parked on my driveway it is very very loud, it can make my ears ring while sitting on the bike. Value 4/5: It was $142 after shipping. The best soundbar on the market is the Kuryakyn Road Thunder, which I have not tried, is $500. They have the same output on paper. I feel for the price it’s worth it. If it was $300 I might feel disappointed.

    Posted by Rome

  • Rated 5 out of 5 stars

    Glad I bought!

    Fairly easy and quick to install. They sound great, just remember at high speeds and with a loud exhaust, sound may be muffled a bit. Overall, I love them!

    Posted by ChristianC

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The GoHawk RD88-S42 Supreme 8-Speaker Motorcycle Sound System delivers powerful 600W peak performance through its RD88-Supreme soundbar featuring six high-output speakers (including silk tweeters, woofers, and passive radiators) paired with two 4.25" external speakers, offering crisp stereo separation, distortion-free mids, and deep bass. Built with Bluetooth 5.0, FM radio, USB support, and AUX-in, this satin black system is designed for Harley-Davidson motorcycles, ATVs, scooters, and outdoor adventures, combining durability, style, and immersive sound in one package.

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