HARMONIZE HMN Series Winglets — Kawasaki Ninja 400 (2017+) Model: HMN-17N4 TS The Ninja 400 gets recommended as a first bike more than almost anything else on the market, but it's also a world champion: it won the FIM Supersport 300 title in its debut season and has been the bike to beat in MotoAmerica's Junior Cup ever since. The HMN-17N4 TS is built for riders who picked this bike because it's approachable, and want it to look like the race-winning platform it actually is. A Beginner Bike With a Championship Résumé Most entry-level sportbikes stay entry-level. The Ninja 400 didn't: it took the world title in its first year of Supersport 300 eligibility and quickly became the dominant machine in MotoAmerica's Junior Cup, the class where a lot of professional road racers get their start. That's an unusual amount of race pedigree for a bike most people buy as their first one. The HMN-17N4 TS is shaped for that exact fairing, giving it a front end that matches the racing it's actually capable of. Precision 3D-Printed, Not Molded Each wing is 3D-printed to its final contour rather than cut from an injection mold, which is what makes the sculpted surface detail possible. The structure holds that shape under sustained wind pressure without adding meaningful weight to the front end. Key Features Wing profile that gives the Ninja 400's nose a more race-derived presence Precision 3D-printed manufacturing for surface detail standard tooling can't replicate Carbon fiber reinforced thermoplastic for durability without added weight 3M VHB mounting: no drilling, no permanent change to the fairing Specifications Series HARMONIZE HMN Series Model HMN-17N4 TS Fitment Kawasaki Ninja 400, 2017+ Material Carbon fiber reinforced thermoplastic Installation 3M VHB, no drilling What's in the Box Winglet, brake side (with 3M VHB) × 1 Winglet, clutch side (with 3M VHB) × 1 3M adhesion promoter × 1 Cleaning pad × 1 Installation instructions × 1 Installation No drilling, no screws. Clean the mounting area with the included pad, apply the adhesion promoter, then place each wing following the instructions. Give the bond its full cure time before riding — VHB builds strength over time, not instantly on contact. Product photos on this page show the winglets fitted to a stock Ninja 400 fairing. FAQ Will this actually improve stability, or is it mostly cosmetic? It's genuinely functional — winglets manage airflow around the nose the same way on any bike. But at Ninja 400 speeds, most owners choose this kit for the race-look it adds rather than needing the kind of aero management a liter-bike rider relies on. Will VHB tape actually hold at speed? Yes, when the surface is prepped correctly. 3M VHB is a structural-grade tape used in the auto industry to bond panels without rivets or screws. Clean the surface, apply the included adhesion promoter, and let the bond fully cure before riding. Can I remove these later? Yes. There's no drilling involved, so there are no holes to fill in if you remove the wings or sell the bike. Is this legal for street riding? Aftermarket bodywork rules vary by country and state. Check your local vehicle regulations before installing and riding on public roads. Why HARMONIZE HARMONIZE doesn't treat a beginner-friendly bike as a lesser one. The HMN-17N4 TS is scanned for the fairing under a machine that's already won a world championship, giving new riders a front end that looks like what the Ninja 400 has proven it can do.
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