Kuryakyn MTX Road Thunder Review: Clear Sound, Mixed Verdict
Few motorcycle audio accessories generate as much debate as the Kuryakyn MTX Road Thunder Sound Bar Plus. Officially boasting a 300W peak power output and IP66-rated weather resistance, its performance scores a solid 8/10 from aggregated feedback—yet that score hides a pronounced divide between riders who find it “crisp and clear” and those calling it “not loud at all.”
Quick Verdict: Conditional buy
| Pros | Cons |
|---|---|
| Clear mid/high tones, audible at moderate road speeds | Noticeable lack of bass |
| Durable, weather-resistant build (IP66) | Bluetooth dropouts at speed |
| Easy to mount for most handlebar sizes | Sound fades at high speeds without windshield |
| Integrated USB charging port | Price considered steep for audio quality |
| Crisp, distortion-free audio at optimal settings | Clamp fit issues reported |
| Simple wiring for ignition-linked power | Bulky design |
| Versatile auxiliary in/out for expansion | Some units failed out-of-box requiring repairs |
Claims vs Reality
One of the main marketing claims is “300 watts of peak power” for distortion-free sound at any volume. Digging deeper into rider feedback, the reality is more nuanced: while some praise its clarity, others feel underwhelmed by its volume, especially on the open road. Reddit user John O. wrote: “I was shocked to hear they were making a new 300w soundbar… well, it is not. I even downloaded a volume booster for my iPhone… for the money it’s just not worth it.”
The IP66 weather resistance claim generally holds up. Riders report it withstands rain and road spray without immediate failure, yet a minority faced issues with water ingress. On BestViewsReviews, 22% noted concern over durability, with one user comparing it unfavorably to a $40 JBL for reliability.
Kuryakyn markets “easy mounting” via universal clamps. While many users found installation straightforward, some experienced clamp fit issues—especially with uncommon handlebar sizes. Kevin A.’s frustration was typical: “I still don’t understand how to install it. Someone had to pay for…”
Cross-Platform Consensus
Universally Praised
Mid and high tones are where the Road Thunder Sound Bar Plus shines. Its clarity benefits riders who prioritize vocals, GPS prompts, and crisp instrumentals. A verified Amazon buyer stated: “Sound quality is… very clear even at high volume. I wish it had a bit more bass.” David B. shared: “Even at 70 km/h I can hear perfectly because of the wind. The sound is crisp and clear.”
The rugged build inspires confidence among long-haul riders, who must contend with harsh conditions. Marcus L. recounted charging his iPhone mid-ride via the built-in USB: “Pairs easily with my phone… works very well when I use Waze… good up to 70 km/h through the city with a closed face.”
Versatile expansion options also earn praise. Riders use the auxiliary output to feed additional amps or sound bars. The ability to connect external setups makes this sound bar a modular upgrade for those who may evolve their bike’s entertainment system over time.
Common Complaints
Bass deficiency dominates criticism. Kevin A. bluntly stated: “If you’re looking for a sound with a base, this isn’t it. Mostly medium and high.” This becomes more pronounced at high speeds without a windshield, where wind noise washes out lower frequencies. Jason W. observed that “at 50-60 it starts to falter” unless shielded.
Bluetooth instability while riding frustrates tech-minded users. One Trustpilot review noted, “Bluetooth disconnects frequently while riding and it is very annoying… kept cutting in and out every 2 seconds.” Given that music streaming is central to its appeal, such interruptions undermine the overall experience for highway commuters.
Mounting clamp fit and sturdiness surfaced as operational quirks. David B. encountered loose 1” clamps despite his handlebar measurements matching spec. This affects riders with non-standard bar finishes or aftermarket grips.
Divisive Features
Volume capability splits opinions. For riders in urban settings or with fairings, it’s “plenty loud” (Amazon reviewer: “Louder than my Harley!”). For others, especially those cruising above 50 mph with open-face helmets, it disappoints. Jason W. conceded it’s not in touring bike stereo territory, “but it doesn’t suck.”
Bulky aesthetics elicit mixed reactions. While the footprint makes a visible statement, some find it fits the rugged cruiser look, others consider it unwieldy for minimalist builds.
Trust & Reliability
Trustpilot and Reddit both reveal isolated incidents of out-of-box failures. James S. shared a cautionary tale: despite following instructions, his unit “gives power for a few seconds and then loses power… electrician fixed, chip was blown, and now it works really well.” This points to solid performance once defective units are repaired, but the inconvenience can be costly depending on warranty logistics.
Long-term durability stories lean positive when the device is maintained and installed correctly. Riders using it daily over months report consistent performance in rain and heat without distortion creep.
Alternatives
While direct competitor names are scarce in user reports, several compare sound clarity and bass to portable Bluetooth speakers like JBL. These rivals often deliver better bass for less money but lack weather sealing and permanent mounts. The consensus: if bass is your only priority, a cheaper portable may suffice—at the cost of convenience, charging integration, and robust mounting.
Price & Value
Current online retail ranges from $314 to $452 USD, with resale values around $325-$365 on eBay for “like new” units. Community sentiment leans toward “pricey for the sound quality” unless the buyer values integrated mounting, weather resistance, and USB charging on rides. Buying tips often recommend waiting for discounts or scoring an open-box unit in good condition.
FAQ
Q: Is the Kuryakyn MTX Road Thunder loud enough for highway cruising?
A: With a windshield, many riders find it clear even at 70-80 mph. Without wind protection, volume and bass suffer above 50 mph.
Q: Can I install it myself without professional help?
A: Most riders manage installation, but correct ignition wiring trips up some. A fuse tap trick from Amazon reviewers simplifies it.
Q: Does it work well in rain?
A: Generally yes due to IP66 rating, though a minority reported water ingress. Proper mounting angle helps protect ports.
Q: Will it fit my handlebars?
A: Universal clamps fit 7/8" to 1-1/2”, but some found looseness with exact matches—consider extra shims or alternate clamps.
Q: How is the Bluetooth performance?
A: Stable for many, but notable cases of dropouts at speed. Device pairing quality matters; volume booster apps can help.
Final Verdict: Buy if you’re a cruiser rider who values clarity over bass, intends to use it with a windshield, and appreciates USB phone charging mid-ride. Avoid if you demand deep low-end performance at high speeds without fairing protection. Pro tip from community: Use a fuse tap for ignition wiring—it’s safer and simplifies setup.
